যদি 3m = 81 হয়, তবে m3 = ?
Solution
Correct Answer: Option D
দেওয়া আছে,
3m = 81
বা, 3m = 34
বা, m = 4
বা, m3 = 43
∴ m3 = 64
3m = 81
বা, 3m = 34
বা, m = 4
বা, m3 = 43
∴ m3 = 64
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