If logx(1/4) = -2, then x = ?

A -1/2

B 1/2

C 2

D 3

Solution

Correct Answer: Option C

logx(1/4) = -2
⇒ x-2 = 1/4
⇒ 1/x2 = 1/4
⇒ x2 = 4
⇒ x = ±2

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