# Derivatives

Not what you're looking for? Search our solutions OR ask your own Custom question.

Solve the following two equations. In each case, determine dy/dx:

a.)y=xcos(2x^2)

Is this right? y'=x(-sin)(2x^2)(4x)

=-4x^2sin(2x^2)

b.)y=xe^-x^2

Is this right? y'=-xe^-x^2+1(e^-x)

=-xe^-x^2+e^-x

https://brainmass.com/math/derivatives/20600

#### Solution Preview

a) What you did is not correct.

y=xcos(2x^2)

...

#### Solution Summary

Derivatives are found and corrected.

$2.49