Find derivative of f(x) = 1/(3u^2 - 1)^2

f'(x) = (3u^2 - 1)^-2

= (-2)(3u^2 - 1)^-3(6u)

= -12u(3u^2 - 1)^-3

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- Sep 3rd 2006, 07:29 PMbeckyderivative
Find derivative of f(x) = 1/(3u^2 - 1)^2

f'(x) = (3u^2 - 1)^-2

= (-2)(3u^2 - 1)^-3(6u)

= -12u(3u^2 - 1)^-3 - Sep 3rd 2006, 07:32 PMThePerfectHackerQuote:

Originally Posted by**becky**

Let,

Then,

Thus,

And,

Thus,

Which is,

Substitute for u and simplify,