JEE MATHEMATICS MCQ: DIFFERENTIATION

1 Easy

1 of 1

Application +4 | -1

Let

f

and

g

be differentiable functions satisfying

g'\left( a \right) = 2,g\left( a \right) = b

and

fog = I

(identify function). Then,

f'\left( b \right)

is equal to

View answer and explanation

Correct option: A

\frac{1}{2}

Option A (1/2) is correct because, given fog = I, the derivative f'(b) can be found using the chain rule and the fact that g'(a) = 2 and g(a) = b.

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