Övn 3
Sommarmatte 1
(Skillnad mellan versioner)
Versionen från 21 juni 2007 kl. 15.47 (redigera) KTH.SE:u1xsetv1 (Diskussion | bidrag) (→Övning 3.2:6) ← Gå till föregående ändring |
Versionen från 21 juni 2007 kl. 15.53 (redigera) (ogör) KTH.SE:u1xsetv1 (Diskussion | bidrag) Gå till nästa ändring → |
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Rad 467: | Rad 467: | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
</table> | </table> | ||
+ | </div> | ||
+ | |||
+ | ==Övning 3.3:1== | ||
+ | <div class="ovning"> | ||
+ | Bestäm $\,x\,$ om | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="50%">$10^x=1\,000$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="50%">$10^x=0{,}1$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="50%">$\displaystyle \frac{1}{10^x}=100$</td> | ||
+ | <td class="ntext">d)</td> | ||
+ | <td class="ntext" width="50%">$\displaystyle \frac{1}{10^x}=0{,}000\,1$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Facit </div> | ||
+ | <div class=NavContent> | ||
+ | Facit till alla delfrågor | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="50%">$x=3$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="50%">$x=-1$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="50%">$x=-2$</td> | ||
+ | <td class="ntext">d)</td> | ||
+ | <td class="ntext" width="50%">$x=4$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning a) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga a) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_1a.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning b) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga b) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_1b.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning c) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga c) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_1c.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning d) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga d) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_1d.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | ==Övning 3.3:2== | ||
+ | |||
+ | <div class="ovning"> | ||
+ | Beräkna | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="25%">$\lg{ 0{,}1}$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="25%">$\lg{ 10\,000}$</td> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="25%">$\lg {0{,}001}$</td> | ||
+ | <td class="ntext">d)</td> | ||
+ | <td class="ntext" width="25%">$\lg {1}$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">e)</td> | ||
+ | <td class="ntext" width="25%">$10^{\lg{2}}$</td> | ||
+ | <td class="ntext">f)</td> | ||
+ | <td class="ntext" width="25%">$\lg{10^3}$</td> | ||
+ | <td class="ntext">g)</td> | ||
+ | <td class="ntext" width="25%">$10^{-\lg{0{,}1}}$</td> | ||
+ | <td class="ntext">h)</td> | ||
+ | <td class="ntext" width="25%">$\lg{\displaystyle \frac{1}{10^2}}$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Facit </div> | ||
+ | <div class=NavContent> | ||
+ | Facit till alla delfrågor | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="25%">$-1$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="25%">$4$</td> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="25%">$-3$</td> | ||
+ | <td class="ntext">d)</td> | ||
+ | <td class="ntext" width="25%">$0$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">e)</td> | ||
+ | <td class="ntext" width="25%">$2$</td> | ||
+ | <td class="ntext">f)</td> | ||
+ | <td class="ntext" width="25%">$3$</td> | ||
+ | <td class="ntext">g)</td> | ||
+ | <td class="ntext" width="25%">$10$</td> | ||
+ | <td class="ntext">h)</td> | ||
+ | <td class="ntext" width="25%">$-2$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning a) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga a) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_2a.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning b) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga b) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_2b.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning c) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga c) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_2c.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning d) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga d) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_2d.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning e) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga e) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_2e.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning f) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga f) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_2f.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning g) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga g) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_2g.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning h) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga h) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_2h.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | ==Övning 3.3:3== | ||
+ | |||
+ | <div class="ovning"> | ||
+ | Beräkna | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="33%">$\log_2{8}$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="33%">$\log_9{\displaystyle \frac{1}{3}}$</td> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="33%">$\log_2{0{,}125}$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">d)</td> | ||
+ | <td class="ntext" width="33%">$\log_3{\left(9\cdot3^{1/3}\right)}$</td> | ||
+ | <td class="ntext">e)</td> | ||
+ | <td class="ntext" width="33%">$2^{\log_{\scriptstyle2}{4}}$</td> | ||
+ | <td class="ntext">f)</td> | ||
+ | <td class="ntext" width="33%">$\log_2{4}+\log_2{\displaystyle \frac{1}{16}}$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">g)</td> | ||
+ | <td class="ntext" width="33%">$\log_3{12}-\log_3{4}$</td> | ||
+ | <td class="ntext">h)</td> | ||
+ | <td class="ntext" width="33%">$\log_a{\bigl(a^2\sqrt{a}\,\bigr)}$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Facit </div> | ||
+ | <div class=NavContent> | ||
+ | Facit till alla delfrågor | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="33%">$3$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="33%">$-\displaystyle \frac{1}{2}$</td> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="33%">$-3$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">d)</td> | ||
+ | <td class="ntext" width="33%">$\displaystyle \frac{7}{3}$</td> | ||
+ | <td class="ntext">e)</td> | ||
+ | <td class="ntext" width="33%">$4$</td> | ||
+ | <td class="ntext">f)</td> | ||
+ | <td class="ntext" width="33%">$-2$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">g)</td> | ||
+ | <td class="ntext" width="33%">$1$</td> | ||
+ | <td class="ntext">h)</td> | ||
+ | <td class="ntext" width="33%">$\displaystyle \frac{5}{2}$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning a) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga a) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_3a.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning b) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga b) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_3b.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning c) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga c) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_3c.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning d) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga d) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_3d.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning e) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga e) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_3e.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning f) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga f) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_3f.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning g) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga g) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_3g.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning h) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga h) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_3h.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | ==Övning 3.3:4== | ||
+ | |||
+ | <div class="ovning"> | ||
+ | Förenkla | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="33%">$\lg{50}-\lg{5}$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="33%">$\lg{23}+\lg{\displaystyle \frac{1}{23}}$</td> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="33%">$\lg{27^{1/3}}+\displaystyle \frac{\lg{3}}{2}+\lg{\displaystyle \frac{1}{9}}$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Facit </div> | ||
+ | <div class=NavContent> | ||
+ | Facit till alla delfrågor | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="33%">$1$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="33%">$0$</td> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="33%">$-\displaystyle \frac{1}{2}\lg{3}$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning a) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga a) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_4a.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning b) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga b) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_4b.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning c) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga c) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_4c.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | ==Övning 3.3:5== | ||
+ | |||
+ | <div class="ovning"> | ||
+ | Förenkla | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="33%">$\ln{e^3}+\ln{e^2}$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="33%">$\ln{8}-\ln{4}-\ln{2}$</td> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="33%">$(\ln{1})\cdot e^2$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">d)</td> | ||
+ | <td class="ntext" width="33%">$\ln{e}-1$</td> | ||
+ | <td class="ntext">e)</td> | ||
+ | <td class="ntext" width="33%">$\ln{\displaystyle \frac{1}{e^2}}$</td> | ||
+ | <td class="ntext">f)</td> | ||
+ | <td class="ntext" width="33%">$\left(e^{\ln{e}}\right)^2$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Facit </div> | ||
+ | <div class=NavContent> | ||
+ | Facit till alla delfrågor | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="33%">$5$</td> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="33%">$0$</td> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="33%">$0$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">d)</td> | ||
+ | <td class="ntext" width="33%">$0$</td> | ||
+ | <td class="ntext">e)</td> | ||
+ | <td class="ntext" width="33%">$-2$</td> | ||
+ | <td class="ntext">f)</td> | ||
+ | <td class="ntext" width="33%">$e^2$</td> | ||
+ | </tr> | ||
+ | <tr><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning a) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga a) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_5a.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning b) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga b) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_5b.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning c) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga c) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_5c.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning d) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga d) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_5d.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning e) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga e) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_5e.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning f) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga f) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_5f.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | ==Övning 3.3:6== | ||
+ | |||
+ | <div class="ovning"> | ||
+ | [[Bild:miniraknare.gif||right]] | ||
+ | Använd miniräknaren till höger för att beräkna med tre decimaler (Knappen <tt>LN</tt> betecknar den naturliga logaritmen i basen ''e''): | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"><td height="5px"/></tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="100%">$\log_3{4}$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="100%">$\lg{46}$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="100%">$\log_3{\log_2{(3^{118})}}$</td> | ||
+ | </tr> | ||
+ | <tr align="left"><td height="40px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Facit </div> | ||
+ | <div class=NavContent> | ||
+ | Facit till alla delfrågor | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr align="left"><td height="5px"/></tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">a)</td> | ||
+ | <td class="ntext" width="100%">$1{,}262$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">b)</td> | ||
+ | <td class="ntext" width="100%">$1{,}663$</td> | ||
+ | </tr> | ||
+ | <tr align="left"> | ||
+ | <td class="ntext">c)</td> | ||
+ | <td class="ntext" width="100%">$4{,}762$</td> | ||
+ | </tr> | ||
+ | <tr align="left"><td height="5px"/></tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning a) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga a) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_6a-1(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_6a-2(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning b) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga b) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_6b.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
+ | </div> | ||
+ | |||
+ | <div class=NavFrame style="CLEAR: both"> | ||
+ | <div class=NavHead>Lösning c) </div> | ||
+ | <div class=NavContent> | ||
+ | Lösning till delfråga c) | ||
+ | <table width="100%"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_6c-1(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_3_6c-2(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
+ | </div> | ||
</div> | </div> |
Versionen från 21 juni 2007 kl. 15.53
Övning 3.1:1
Skriv i potensform
a) | $\sqrt{2}$ | b) | $\sqrt{7^5}$ | c) | $\bigl(\sqrt[\scriptstyle3]{3}\,\bigr)^4$ | d) | $\sqrt{\sqrt{3}}$ |
a) | $2^{1/2}$ | b) | $7^{5/2}$ | c) | $3^{4/3}$ | d) | $3^{1/4}$ |
Övning 3.1:2
Förenkla så långt som möjligt
a) | $\sqrt{3^2}$ | b) | $\sqrt{\left(-3\right)^2}$ | c) | $\sqrt{-3^2}$ | d) | $\sqrt{5}\cdot\sqrt[\scriptstyle3]{5}\cdot5$ |
e) | $\sqrt{18}\cdot\sqrt{8}$ | f) | $\sqrt[\scriptstyle3]{8}$ | g) | $\sqrt[\scriptstyle3]{-125}$ | ||
a) | $3$ | b) | $3$ | c) | ej definierad | d) | $5^{11/6}$ |
e) | $12$ | f) | $2$ | g) | $-5$ | ||
Övning 3.1:3
Förenkla så långt som möjligt
a) | $\bigl(\sqrt{5}-\sqrt{2}\,\bigr)\bigl(\sqrt{5}+\sqrt{2}\,\bigr)$ | b) | $\displaystyle \frac{\sqrt{96}}{\sqrt{18}}$ |
c) | $\sqrt{16+\sqrt{16}}$ | d) | $\sqrt{\displaystyle \frac{2}{3}}\bigl(\sqrt{6}-\sqrt{3}\,\bigr)$ |
a) | $3$ | b) | $\displaystyle \frac{4\sqrt{3}}{3}$ |
c) | $2\sqrt{5}$ | d) | $2-\sqrt{2}$ |
Övning 3.1:4
Förenkla så långt som möjligt
a) | $\sqrt{0{,}16}$ | b) | $\sqrt[\scriptstyle3]{0{,}027}$ | |
c) | $\sqrt{50}+4\sqrt{20}-3\sqrt{18}-2\sqrt{80}$ | d) | $\sqrt{48}+ \sqrt{12} +\sqrt{3} -\sqrt{75}$ | |
a) | $0{,}4$ | b) | $0{,}3$ |
c) | $-4\sqrt{2}$ | d) | $2\sqrt{3}$ |
Övning 3.1:5
Skriv som ett uttryck utan rottecken i nämnaren.
a) | $\displaystyle \frac{2}{\sqrt{12}}$ | b) | $\displaystyle \frac{1}{\sqrt[\scriptstyle3]{7}}$ | c) | $\displaystyle \frac{2}{3+\sqrt{7}}$ | d) | $\displaystyle \frac{1}{\sqrt{17}-\sqrt{13}}$ |
a) | $\displaystyle \frac{\sqrt{3}}{3}$ | b) | $\displaystyle \frac{7^{2/3}}{7}$ | c) | $3-\sqrt{7}$ | d) | $\displaystyle \frac{\sqrt{17}+\sqrt{13}}{4}$ |
Övning 3.1:6
Skriv som ett uttryck utan rottecken i nämnaren.
a) | $\displaystyle \frac{\sqrt{2}+3}{\sqrt{5}-2}$ | b) | $\displaystyle \frac{1}{\left(\sqrt{3}-2\right)^2-2}$ |
c) | $\displaystyle \frac{\displaystyle \frac{1}{\sqrt{3}}-\displaystyle \frac{1}{\sqrt{5}}}{\displaystyle \frac{1}{\sqrt{2}}-\displaystyle \frac{1}{2}}$ | d) | $\displaystyle \frac{1}{\sqrt{2}+\sqrt{3}+\sqrt{6}}$ |
a) | $6+2\sqrt{2}+3\sqrt{5}+\sqrt{10}$ | b) | $-\displaystyle \frac{5+4\sqrt{3}}{23}$ |
c) | $\displaystyle \frac{2}{3}\sqrt{6}+\displaystyle \frac{2}{3}\sqrt{3}-\displaystyle \frac{2}{5}\sqrt{10}-\displaystyle \frac{2}{5}\sqrt{5}$ | d) | $\displaystyle \frac{5\sqrt{3}+7\sqrt{2}-\sqrt{6}-12}{23}$ |
Övning 3.1:7
Förenkla så långt som möjligt
a) | $\displaystyle \frac{1}{\sqrt{6}-\sqrt{5}} - \displaystyle \frac{1}{\sqrt{7}-\sqrt{6}}$ | b) | $\displaystyle \frac{5\sqrt{7}-7\sqrt{5}}{\sqrt{7}-\sqrt{5}}$ | c) | $\displaystyle \sqrt{153}-\sqrt{68}$ |
a) | $\sqrt{5}-\sqrt{7}$ | b) | $-\sqrt{35}$ | c) | $\sqrt{17}$ |
Övning 3.1:8
Avgör vilket tal som är störst av
a) | $\sqrt[\scriptstyle3]5\ $ och $\ \sqrt[\scriptstyle3]6$ | b) | $\sqrt7\ $ och $\ 7$ |
c) | $\sqrt7\ $ och $\ 2{,}5$ | d) | $\sqrt2\bigl(\sqrt[\scriptstyle4]3\,\bigr)^3\ $ och $\ \sqrt[\scriptstyle3]2\cdot3$ |
a) | $\sqrt[\scriptstyle3]6 > \sqrt[\scriptstyle3]5$ | b) | $7 > \sqrt7$ |
c) | $\sqrt7 > 2{,}5$ | d) | $\sqrt[\scriptstyle3]2\cdot3 > \sqrt2\bigl(\sqrt[\scriptstyle4]3\,\bigr)^3$ |
Övning 3.2:1
Lös ekvationen $\ \sqrt{x-4}=6-x\,$. |
$x=5$ |
Övning 3.2:2
Lös ekvationen $\ \sqrt{2x+7}=x+2\,$. |
$x=1$ |
Övning 3.2:3
Lös ekvationen $\ \sqrt{3x-8}+2=x\,$. |
$\left \{ \eqalign{ x_1 & = 3 \cr x_2 & = 4\cr } \right.$ |
Övning 3.2:4
Lös ekvationen $\ \sqrt{1-x}=2-x\,$. |
Saknar lösning. |
Övning 3.2:5
Lös ekvationen $\ \sqrt{3x-2}=2-x\,$. |
$x=1$ |
Övning 3.2:6
Lös ekvationen $\ \sqrt{x+1}+\sqrt{x+5}=4\,$. |
$x=\displaystyle\frac{5}{4}$ |
Övning 3.3:1
Bestäm $\,x\,$ om
a) | $10^x=1\,000$ | b) | $10^x=0{,}1$ |
c) | $\displaystyle \frac{1}{10^x}=100$ | d) | $\displaystyle \frac{1}{10^x}=0{,}000\,1$ |
Facit
Facit till alla delfrågor
a) | $x=3$ | b) | $x=-1$ |
c) | $x=-2$ | d) | $x=4$ |
Övning 3.3:2
Beräkna
a) | $\lg{ 0{,}1}$ | b) | $\lg{ 10\,000}$ | c) | $\lg {0{,}001}$ | d) | $\lg {1}$ |
e) | $10^{\lg{2}}$ | f) | $\lg{10^3}$ | g) | $10^{-\lg{0{,}1}}$ | h) | $\lg{\displaystyle \frac{1}{10^2}}$ |
Facit
Facit till alla delfrågor
a) | $-1$ | b) | $4$ | c) | $-3$ | d) | $0$ |
e) | $2$ | f) | $3$ | g) | $10$ | h) | $-2$ |
Övning 3.3:3
Beräkna
a) | $\log_2{8}$ | b) | $\log_9{\displaystyle \frac{1}{3}}$ | c) | $\log_2{0{,}125}$ |
d) | $\log_3{\left(9\cdot3^{1/3}\right)}$ | e) | $2^{\log_{\scriptstyle2}{4}}$ | f) | $\log_2{4}+\log_2{\displaystyle \frac{1}{16}}$ |
g) | $\log_3{12}-\log_3{4}$ | h) | $\log_a{\bigl(a^2\sqrt{a}\,\bigr)}$ | ||
Facit
Facit till alla delfrågor
a) | $3$ | b) | $-\displaystyle \frac{1}{2}$ | c) | $-3$ |
d) | $\displaystyle \frac{7}{3}$ | e) | $4$ | f) | $-2$ |
g) | $1$ | h) | $\displaystyle \frac{5}{2}$ | ||
Övning 3.3:4
Förenkla
a) | $\lg{50}-\lg{5}$ | b) | $\lg{23}+\lg{\displaystyle \frac{1}{23}}$ | c) | $\lg{27^{1/3}}+\displaystyle \frac{\lg{3}}{2}+\lg{\displaystyle \frac{1}{9}}$ |
Facit
Facit till alla delfrågor
a) | $1$ | b) | $0$ | c) | $-\displaystyle \frac{1}{2}\lg{3}$ |
Övning 3.3:5
Förenkla
a) | $\ln{e^3}+\ln{e^2}$ | b) | $\ln{8}-\ln{4}-\ln{2}$ | c) | $(\ln{1})\cdot e^2$ |
d) | $\ln{e}-1$ | e) | $\ln{\displaystyle \frac{1}{e^2}}$ | f) | $\left(e^{\ln{e}}\right)^2$ |
Facit
Facit till alla delfrågor
a) | $5$ | b) | $0$ | c) | $0$ |
d) | $0$ | e) | $-2$ | f) | $e^2$ |
Övning 3.3:6
Använd miniräknaren till höger för att beräkna med tre decimaler (Knappen LN betecknar den naturliga logaritmen i basen e):
a) | $\log_3{4}$ |
b) | $\lg{46}$ |
c) | $\log_3{\log_2{(3^{118})}}$ |
Facit
Facit till alla delfrågor
a) | $1{,}262$ |
b) | $1{,}663$ |
c) | $4{,}762$ |