JEE Main 2021 — Binomial Theorem Question with Solution
From: JEE Main 2021 (Online) 27th July Evening Shift
Question
A possible value of 'x', for which the ninth term in the expansion of in the increasing powers of is equal to 180, is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D1
Step-by-step explanation
;
t = 1, 3 = 5x 1
x 1 = 0 (one of the possible value).
x = 1
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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.