Question

Derivatives Review: Find the derivative: cos((x^2)+1)+m

Answer 1

is it sin2x/m'?

Answer 2

Is m a constant or a variable?

Answer 3

i think its a variable

Answer 4

Well then I think the derivative is -2x sin(x^2 + 1) + m'

Answer 5

is that using the chain rule?

Answer 6

Yup. The outside derivative is the -sin (x^2 + 1) and then multiply by the inner derivative 2x. Then you add the m' (if it turns out that m is not a variable, then you leave this last part out)

Answer 7

thanks!

Answer 8

Welcome!

Answer 9

hi, on wolframalpha it says m is zero

Answer 10

do you mean that there is no m in the final answer? if so, it's probably because m is a constant and not a variable. the derivative of a constant is always zero, so that's why the m goes away.