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Question
If $√{3n}$ = 2187 then the value of n is :
Options:
A .  14
B .  16
C .  15
D .  13
Answer: Option A
Answer:(a)$√{3^n}$ = 2187$3^{n/2} = (3)^7$$n/2$ = 7n = 2 × 7 = 14

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