JEE MATHEMATICS MCQ: DIFFERENTIATION

1 Easy

1 of 1

Application +4 | -1

f(x)=\cos \left(x^2-4[x]\right)

for

0 < x < 1

, where

[x]

denotes the greatest integer

\leq \mathrm{x}

, then

f^{\prime}(\sqrt{\pi} / 2)

is equal

View answer and explanation

Correct option: A

-\sqrt{\frac{\pi}{2}}

Option A (

-\sqrt{\frac{\pi}{2}}

) is correct because the derivative of the function is calculated and then evaluated at the given point.

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x

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