Question

How do I find the derivative of cos^2(x)

Answer 1

use the chain rule. that function is the composition of cos(x) and x^2

Answer 2

thank you

Answer 3

\[y=\cos^2x\]
\[y'=2(cosx)^1\]
\[y'=2cosx\]

Answer 4

-1 fan for corec

Answer 5

\[y′=2(cosx)1(cosx)'\]
\[y′=2 cosx sinx\]

Answer 6

-2 (both fans for corec and the constant in front of his answer)

Answer 7

right =)
y' = -2 cosx sinx
lol