JEE Main 2021 — Binomial Theorem Question with Solution
From: JEE Main 2021 (Online) 31st August Morning Shift
Question
If is the term, independent of x, in the binomial expansion of , then k is equal to ___________.
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Show full solutionCorrect answer: 55
Correct answer
55
Step-by-step explanation
Term independent of x 12 3r = 0 r = 4
k = 55
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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.