Question

Find y" for y = sin2(x)

Answer 1

@satellite73 can u help?

Answer 2

I am assuming you mean \[y = \sin^2(x)\] in which case use the product rule.

which is d/dx f(x)g(x) = f'(x)g(x) + f(x)g'(x)

Answer 3

i got this is it correct? y = 2(cos^2 x - sin^2 x)

Answer 4

ok

Answer 5

wait

Answer 6

oh ok

Answer 7

cos^2(x)-sin^2(x)=cos2(x) y'=-2sin2x y"=-4cos2x

Answer 8

ok