logx324 = 4 হলে, x এর মান কত ?

A 3√2

B √3

C √2

D √32

Solution

Correct Answer: Option A

logx324 = 4 
x4 = 324 
x4 = 34 × 22
x4 = 34  × {(√2)2}2
x4 = 34 × (√2)4
x4 = (3√2)4
x = 3√2

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