3.2 Övningar
Sommarmatte 1
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Versionen från 29 april 2007 kl. 13.22 (redigera) Ossiang (Diskussion | bidrag) (→Övning 2.3:6) ← Gå till föregående ändring |
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Rad 1: | Rad 1: | ||
+ | __NOTOC__ | ||
==Övning 3.2:1== | ==Övning 3.2:1== | ||
<div class="ovning"> | <div class="ovning"> | ||
- | Lös ekvationen | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$\sqrt{x-4}=6-x$</td> | + | <td class="ntext" width="100%">Lös ekvationen $\ \sqrt{x-4}=6-x\,$. |
+ | </td> | ||
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 17: | Rad 18: | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$x=5$</td> | + | <td class="ntext" width="100%">$x=5$</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 28: | Rad 29: | ||
<div class=NavHead>Lösning </div> | <div class=NavHead>Lösning </div> | ||
<div class=NavContent> | <div class=NavContent> | ||
- | [[Bild:3_2_1-1(3).gif]]<br \>[[Bild:3_2_1-2(3).gif]]<br \>[[Bild:3_2_1-3(3).gif]] | + | <table width="100%" cellspacing="10px"> |
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_1-1(3).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_1-2(3).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_1-3(3).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
</div> | </div> | ||
</div> | </div> | ||
Rad 35: | Rad 52: | ||
<div class="ovning"> | <div class="ovning"> | ||
- | Lös ekvationen | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$\sqrt{2x+7}=x+2$</td> | + | <td class="ntext" width="100%">Lös ekvationen $\ \sqrt{2x+7}=x+2\,$. |
+ | </td> | ||
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 50: | Rad 67: | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$x=1$</td> | + | <td class="ntext" width="100%">$x=1$</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 61: | Rad 78: | ||
<div class=NavHead>Lösning </div> | <div class=NavHead>Lösning </div> | ||
<div class=NavContent> | <div class=NavContent> | ||
- | [[Bild:3_2_2-1(3).gif]]<br \>[[Bild:3_2_2-2(3).gif]]<br \>[[Bild:3_2_2-3(3).gif]] | + | <table width="100%" cellspacing="10px"> |
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_2-1(3).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_2-2(3).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_2-3(3).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
</div> | </div> | ||
</div> | </div> | ||
Rad 68: | Rad 101: | ||
<div class="ovning"> | <div class="ovning"> | ||
- | Lös ekvationen | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$\sqrt{3x-8}+2=x$</td> | + | <td class="ntext" width="100%">Lös ekvationen $\ \sqrt{3x-8}+2=x\,$.</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 83: | Rad 115: | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$\left \{ \matrix { x_1 & = 3 \cr x_2 & = 4 } \right.$</td> | + | <td class="ntext" width="100%">$\left \{ \eqalign{ x_1 & = 3 \cr x_2 & = 4\cr } \right.$</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 94: | Rad 126: | ||
<div class=NavHead>Lösning </div> | <div class=NavHead>Lösning </div> | ||
<div class=NavContent> | <div class=NavContent> | ||
- | [[Bild:3_2_3-1(2).gif]]<br \>[[Bild:3_2_3-2(2).gif]] | + | <table width="100%" cellspacing="10px"> |
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_3-1(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_3-2(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
</div> | </div> | ||
</div> | </div> | ||
Rad 101: | Rad 144: | ||
<div class="ovning"> | <div class="ovning"> | ||
- | Lös ekvationen | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$\sqrt{1-x}=2-x$</td> | + | <td class="ntext" width="100%">Lös ekvationen $\ \sqrt{1-x}=2-x\,$.</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 116: | Rad 158: | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">Saknar lösning.</td> | + | <td class="ntext" width="100%">Saknar lösning.</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 127: | Rad 169: | ||
<div class=NavHead>Lösning </div> | <div class=NavHead>Lösning </div> | ||
<div class=NavContent> | <div class=NavContent> | ||
+ | <table width="100%" cellspacing="10px"> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
[[Bild:3_2_4.gif]] | [[Bild:3_2_4.gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
</div> | </div> | ||
</div> | </div> | ||
Rad 135: | Rad 183: | ||
<div class="ovning"> | <div class="ovning"> | ||
- | Lös ekvationen | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$\sqrt{3x-2}=2-x$</td> | + | <td class="ntext" width="100%">Lös ekvationen $\ \sqrt{3x-2}=2-x\,$.</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 150: | Rad 197: | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$x=1$</td> | + | <td class="ntext" width="100%">$x=1$</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 161: | Rad 208: | ||
<div class=NavHead>Lösning </div> | <div class=NavHead>Lösning </div> | ||
<div class=NavContent> | <div class=NavContent> | ||
- | [[Bild:3_2_5-1(2).gif]]<br \>[[Bild:3_2_5-2(2).gif]] | + | <table width="100%" cellspacing="10px"> |
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_5-1(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_5-2(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
</div> | </div> | ||
</div> | </div> | ||
Rad 168: | Rad 226: | ||
<div class="ovning"> | <div class="ovning"> | ||
- | Lös ekvationen | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$\sqrt{x+1}+\sqrt{x+5}=4$</td> | + | <td class="ntext" width="100%">Lös ekvationen $\ \sqrt{x+1}+\sqrt{x+5}=4\,$.</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 183: | Rad 240: | ||
<table width="100%" cellspacing="10px"> | <table width="100%" cellspacing="10px"> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
- | <tr align="center"> | + | <tr align="left"> |
- | <td class="ntext">$x=\displaystyle\frac{5}{4}$</td> | + | <td class="ntext" width="100%">$x=\displaystyle\frac{5}{4}$</td> |
</tr> | </tr> | ||
<tr><td height="5px"/></tr> | <tr><td height="5px"/></tr> | ||
Rad 194: | Rad 251: | ||
<div class=NavHead>Lösning </div> | <div class=NavHead>Lösning </div> | ||
<div class=NavContent> | <div class=NavContent> | ||
- | [[Bild:3_2_6-1(2).gif]]<br \>[[Bild:3_2_6-2(2).gif]] | + | <table width="100%" cellspacing="10px"> |
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_6-1(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td align="center"> | ||
+ | [[Bild:3_2_6-2(2).gif]] | ||
+ | </td> | ||
+ | </tr> | ||
+ | </table> | ||
</div> | </div> | ||
</div> | </div> |
Versionen från 14 maj 2007 kl. 08.50
Övning 3.2:1
Lös ekvationen $\ \sqrt{x-4}=6-x\,$. |
Facit
$x=5$ |
Övning 3.2:2
Lös ekvationen $\ \sqrt{2x+7}=x+2\,$. |
Facit
$x=1$ |
Övning 3.2:3
Lös ekvationen $\ \sqrt{3x-8}+2=x\,$. |
Facit
$\left \{ \eqalign{ x_1 & = 3 \cr x_2 & = 4\cr } \right.$ |
Övning 3.2:4
Lös ekvationen $\ \sqrt{1-x}=2-x\,$. |
Facit
Saknar lösning. |
Övning 3.2:5
Lös ekvationen $\ \sqrt{3x-2}=2-x\,$. |
Facit
$x=1$ |
Övning 3.2:6
Lös ekvationen $\ \sqrt{x+1}+\sqrt{x+5}=4\,$. |
Facit
$x=\displaystyle\frac{5}{4}$ |