যদি (√2)3x + 1 = 16 হয়, তাহলে x এর মান কত?
Solution
Correct Answer: Option C
(√2)3x + 1 = 16
⇒ (21/2)3x + 1 = 24
⇒ 2(1/2)(3x + 1) = 24
⇒ 2(3x + 1)/2 = 24
⇒ (3x + 1)/2 = 4
⇒ 3x + 1 = 4 × 2
⇒ 3x = 8 - 1
⇒ 3x = 7
∴ x = 7/3
⇒ (21/2)3x + 1 = 24
⇒ 2(1/2)(3x + 1) = 24
⇒ 2(3x + 1)/2 = 24
⇒ (3x + 1)/2 = 4
⇒ 3x + 1 = 4 × 2
⇒ 3x = 8 - 1
⇒ 3x = 7
∴ x = 7/3
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