Derivative of an Inverse Function
Let $f$ be the function defined by $f(x) = \arccos(x)$. What is the value of $(f^{-1})'(-1)$?
A
$\frac{1}{2}$
B
$\frac{\pi}{4}$
C
$1$
D
Undefined
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Let $f$ be the function defined by $f(x) = \arccos(x)$. What is the value of $(f^{-1})'(-1)$?
$\frac{1}{2}$
$\frac{\pi}{4}$
$1$
Undefined
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