Asked by Laura
what is the derivative of 4(x^2-1)^-1/2
Answers
Answered by
drwls
Let x^2-1 = u
df/dx = df/du*du/dx
f'(x) = -2*(x^2-1)^-3/2 * 2x
= -4x/(x^2-1)^3/2
df/dx = df/du*du/dx
f'(x) = -2*(x^2-1)^-3/2 * 2x
= -4x/(x^2-1)^3/2
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