FunctionHard

Question

Let f: R → R be a positive increasing function with = 1. Then =

Options

A.
B.
C.3
D.1

Solution

f(x) is a positive increasing function
⇒ 0 < f(x) < f(2x) < f(3x)
⇒ 0 < 1 <
⇒
By sandwich theorem.
⇒

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