Question

y'' of 6cosx

Answer 1

** y'' of 6cotx

Answer 2

y' of 6cot(x) = -6csc^2(x)

y' of -6csc^2(x) = 12cot(x)csc^2x

Try this www.wolframalpha.com

Answer 3

The confusing part is the y' of -6csc^2x. Do you multiply the 6 by the square of the cot?

Thanks for your help!

Answer 4

well the derivative of -csc^2x = 2cot(x)csc^2(x)

it's just one of those identities.