যদি logx324 = 4 হয়, তবে x এর মান কত?
Solution
Correct Answer: Option A
logx324 = 4
বা, x4 = 324
বা,x4 = 81 × 4
বা, x4 = 34 × 22
বা, x4 = 34 × (√2)4
বা, x4 = (3√2)4
বা, x = 3√2
∴ x = 3√2
বা, x4 = 324
বা,x4 = 81 × 4
বা, x4 = 34 × 22
বা, x4 = 34 × (√2)4
বা, x4 = (3√2)4
বা, x = 3√2
∴ x = 3√2
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