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CGP EDU Academic Team
Published on: August 14, 2026
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 -
Text Solution
Verified by ExpertsThe correct answer is:
A
2n C 3r –1 = 2n C r+1
⇒ 3r – 1 + r + 1 = 2n
⇒ 4r = 2n ⇒ 2r = n
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