JEE Main 29-Jan-2024 Shift 2 Solved Paper

Section: Mathematics

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Question : 27 of 90

Marks: +1, -0

Let f(x)=√

lim

r→x

{‌

2r2[(f(r))2−f(x)f(r)]

r2−x2

−r3e‌

f(r)

r

} be differentiable in (−∞,0)∪(0,∞) and f(1)=1. Then the value of ea, such that f(a)=0, is equal to_____

[29-Jan-2024 Shift 2]

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