Question

cos^2-sin(2theta)= sin^2 theta

Answer 1

?

Answer 2

\(\cos^2\theta-\sin2\theta=\sin^2\theta\)

Answer 3

Try:\[\cos^{2}(\theta)=1-\sin ^{2}(\theta)\]
on
\[\cos^{2}(\theta)\]
and simplify.

Answer 4

Gudnyt.

Answer 5

hey but \[\sin ^{2}+\cos ^{2}=1 \] so like i get stuck where 1=2sinthetacostheta