Question

help me evaluate...

Answer 1

\[\int\limits_{}^{}\cos ^{2} (x)\]

Answer 2

Use the double angle formula
\[
\cos^2(x)=\frac { 1 + \cos(2x)} 2
\]

Answer 3

does that simplifies?

Answer 4

Of course it does
\[\cos^2(x)=\frac { 1 + \cos(2x)} 2= \frac 1 2 + \frac 1 2 \cos(2x)
\]

Answer 5

mertsj can you help?

Answer 6

??

Answer 7

with my question thank you

Answer 8

\[
\frac x 2 + \frac 1 2 \sin(2x) + C
\]