Find the derivative of T(n)=n-n^3, using first principles.

Thanks.

Nov 24th 2007, 10:21 AM

topsquark

Quote:

Originally Posted by johntuan

Find the derivative of T(n)=n-n^3, using first principles.

Thanks.

Expand the numerator and collect like terms. You will find that the resulting numerator is divisible by h, so divide the h in the numerator by the one in the denominator. This will make your limit trivial.