Question

what's the trig identity for sin^2(x) = ? so that I can integrate it.

Answer 1

(1-cos2x)/2

Answer 2

yes. thank you!

Answer 3

:3

Answer 4

recall $$\cos2x=\cos^2 x-\sin^2x=1-\sin^2x-\sin^2x=1-2\sin^2 x$$Solving for \(\sin^2 x\) we have:$$2\sin^2 x=1-\cos 2x\\\sin^2 x=\frac12(1-\cos 2x)$$

Answer 5

true. Unfortunately this is part of a much bigger problem and I didn't want to go to all that trouble :)