LimitsHard

Question

If f(x) exists and is finite and nonzero and = 3, then the value of f(x) is equal to

Options

A.1
B.-1
C.2
D.none of these

Solution

f(x) exist and is finite & non zero
= 3
⇒ f(x) + = 3
Let f(x) = A
A + = 3
⇒ A = 1
so f(x) = 1

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