The value of at so that the function for is continuous at is:

MATHEMATICS · Single correct · CBSE · Mathematics · Limits and Derivatives · Limits and Derivatives

Problem

The value of

f

at

x=0

so that the function

f(x)=\frac{2^x-2^{-x}}{x}

for

x\ne0

is continuous at

x=0

is: (a)

0

(b)

\log 2

(c)

4

(d)

\log 4

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