r and n are positive integers r>1, n>2 and coefficient of (r+2)^{t h} term and 3 r^{\text{th }} term in the expansion of (1+x)^{2 n} are equal, then n equals [AIEEE 2002]

AIEEE 2002 Math Solved Paper

Section: Mathematics

Question : 13 of 74

Marks: +1, -0

r and n are positive integers r>1,n>2 and coefficient of (r+2)th term and 3r‌th ‌ term in the expansion of (1+x)2n are equal, then n equals

[AIEEE 2002]

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