If for positive integers r > 1 n > 1 and the coefficient of (3r)th and – InterviewSolution

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1.	If for positive integers r > 1 n > 1 and the coefficient of (3r)th and (r+2)th terms in the binomial expansion of (1+x)2n are equal, then
Answer» If for positive integers r > 1 n > 1 and the coefficient of $(3 r)^{t h}$ and $(r + 2)^{t h}$ terms in the binomial expansion of $(1 + x)^{2 n}$ are equal, then

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