Question

cos2x= Square root of 2 minus cos2x. Solving for all solutions between [0, 2pie).

Answer 1

is it\[\cos2x=\sqrt{2-\cos2x}\]

Answer 2

No

Answer 3

\[\cos 2x= \sqrt{2}- \cos2x\]

Answer 4

ok

Answer 5

or,\[2\cos2x=\sqrt{2}\]

Answer 6

or,\[\cos 2 x=\frac{ 1 }{ \sqrt{2} }\]

Answer 7

or,\[\cos 2x=\cos \frac{ \pi }{ 4 }\]

Answer 8

i think u will b able do the rest