f(x) = ^ - 1 ( 2 x^2 - 1 ) is not differentiable at x = a , then … - Vidyadip

MCQ

$f(x)$ = ${\cos ^{ - 1}}\left( {2{x^2} - 1} \right)$ is not differentiable at $x = a$ , then $a$ equal

A
$\frac{1}{{\sqrt 2 }}$
B
$\frac {1}{3}$
✓
$0$
D
Not defined

✓

Answer

Correct option: C.

$0$

c

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