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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Originally Posted by becky 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 You probably mean, Let, Then, Thus, And, Thus, Which is, Substitute for u and simplify,
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