If and , which one of the following must be true whenever…

MATHEMATICS · Single correct · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

If

b>0

and

b\neq1

, which one of the following must be true whenever

b^{x}=b^{k}

? (a)

x=\log_{b} k

(b)

x=k

(c)

x=k+1

(d)

x=\dfrac{k}{\ln b}

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