JEE Main 2021 — Binomial Theorem Question with Solution
From: JEE Main 2021 (Online) 24th February Evening Shift
Question
For integers n and r, let \left( {\matrix{
n \cr
r \cr
} } \right) = \left\{ {\matrix{
{{}^n{C_r},} & {if\,n \ge r \ge 0} \cr
{0,} & {otherwise} \cr
} } \right. The maximum value of k for which the sum exists, is equal to _________.
Enter your answer
Show full solutionCorrect answer: —
Correct answer
See solution below.
Step-by-step explanation
As k is unbounded so maximum value is not defined.
Question will be BONUS.
Question will be BONUS.
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This is a previous-year question from JEE Main 2021, covering the Binomial Theorem chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.