Mathematics · 2020
JEE Main · 4 September 2020, Shift 2 · Q56
If for some positive integer n, the coefficients of three consecutive terms in the binomial expansion of (1+x)^n +5 are in the ratio 5: 10: 14, then…
If for some positive integer n , the coefficients of three consecutive terms in the binomial expansion of $\displaystyle (1+x)^{\mathbf{n}+5}$ are in the ratio $\displaystyle 5$ : $\displaystyle 10$ : $\displaystyle 14$, then the largest coefficient in this expansion is :
Official answer
(3)
$\displaystyle 462$
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.