JEE Main 2021 — Binomial Theorem Question with Solution
From: JEE Main 2021 (Online) 16th March Evening Shift
Question
Let n be a positive integer. Let
. If
, then n is equal to _____________.
. If
, then n is equal to _____________.
Enter your answer
Show full solutionCorrect answer: 6
Correct answer
6
Step-by-step explanation
=
Given,
=
For n = 6, L.H.S = R.H.S
n = 6
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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.