Question

Find the derivative

y=sinx(sinx+cosx)

I got y'= cos(x)-sin^2(x)+2cos(x)sin(x)

is this righttttttt??

Answer 1

sin (cos - sin) + cos (sin + cos)
-sin^2+cos^2 + 2 sin cos

I have cos^2
You have cos

Answer 2

So I just had the cos wrong?

Answer 3

as far as I know

Answer 4

Thanks