Given positive integers r > 1, n > 2 and the coefficients of (3r)th an – InterviewSolution

1.	Given positive integers r > 1, n > 2 and the coefficients of (3r)th and (r+2)th terms in the Binomial expansion of (1+x)2n are equal, then:
Answer» Given positive integers r > 1, n > 2 and the coefficients 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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