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+1 vote
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in Mathematics by (49.2k points)

If the co-efficient of x7 and x8 in the expansion of (2+x/3)n are equal, then the value of n is equal to _______.

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1 Answer

+1 vote
by (50.7k points)

⇒ n – 7 = 48 ⇒ n = 55

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