JEE Main 28 Jan 2025 Shift 2 Paper

Section: Mathematics

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Question : 22 of 75

Marks: +1, -0

If f(x)=

lim

n⟶∞

‌

n

∑

r=0

(‌

tan(x∕2r+1)+tan3(x∕2r+1)

1−tan2(x∕2r+1)

).
Then

lim

x⟶0

‌

ex−ef(x)

(x−f(x))

is equal to ____ .

[28 Jan 2025 Shift 2]

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