# High Order Derivative Help

1. Nov 5, 2005

### gr3g1

Hey guys,

My function is : y=(1-x^2)^3
I found my first derivative as : -6x(1-x^2)^2
But i cant seem to find the second derivative.

Do I use the product rule?

2. Nov 5, 2005

### gdumont

You are right use the product rule
$$f(x)=u(x)v(x)$$
then
$$f'(x) = u'(x)v(x) + v'(x)u(x)$$
here $u(x)=-6x$ and $v(x)=(1-x^2)^2$

Last edited: Nov 5, 2005
3. Nov 5, 2005

Thanks A lot