JEE MATHEMATICS MCQ: DIFFERENTIATION

1 Easy

1 of 1

Application +4 | -1

y=(1+x)\left(1+x^2\right)\left(1+x^4\right) \ldots \left(1+x^{2^n}\right)

then

\frac{d y}{d x}

x=0

is-

View answer and explanation

Correct option: A

Option A (1) is correct because after multiplying by (1-x) and simplifying, the derivative at x=0 is found to be 1.

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