Answer 4.4:2

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(Ny sida: {| width="100%" cellspacing="10px" |a) |width="33%" | <math>\left\{\eqalign{ x&=\displaystyle\frac{\pi}{3}+2n\pi\cr x&=\displaystyle\frac{2\pi}{3}+2n\pi } \right.</math> |b) |width="33%" ...)
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|width="33%" | <math>\left\{\eqalign{
|width="33%" | <math>\left\{\eqalign{
x&=\displaystyle\frac{\pi}{4}+\displaystyle\frac{2n\pi}{3}\cr
x&=\displaystyle\frac{\pi}{4}+\displaystyle\frac{2n\pi}{3}\cr
-
x&=\displaystyle\frac{5\pi}{12}+\displaystyle\frac{2n\pi}{3}} \right.$</math>
+
x&=\displaystyle\frac{5\pi}{12}+\displaystyle\frac{2n\pi}{3}} \right.</math>
|}
|}

Revision as of 12:52, 3 April 2008

a) \displaystyle \left\{\eqalign{

x&=\displaystyle\frac{\pi}{3}+2n\pi\cr x&=\displaystyle\frac{2\pi}{3}+2n\pi } \right.

b) \displaystyle \left\{\eqalign{

x&=\displaystyle\frac{\pi}{3}+2n\pi\cr x&=\displaystyle\frac{5\pi}{3}+2n\pi } \right.

c) \displaystyle x=n\pi
d) \displaystyle \left\{\eqalign{

x&=\displaystyle\frac{\pi}{20}+\displaystyle\frac{2n\pi}{5}\cr x&=\displaystyle\frac{3\pi}{20}+\displaystyle\frac{2n\pi}{5} } \right.

e) \displaystyle \left\{\eqalign{

x&=\displaystyle\frac{\pi}{30}+\displaystyle\frac{2n\pi}{5}\cr x&=\displaystyle\frac{\pi}{6}+\displaystyle\frac{2n\pi}{5}} \right.

f) \displaystyle \left\{\eqalign{

x&=\displaystyle\frac{\pi}{4}+\displaystyle\frac{2n\pi}{3}\cr x&=\displaystyle\frac{5\pi}{12}+\displaystyle\frac{2n\pi}{3}} \right.