JEE Main 2016 — Binomial Theorem Question with Solution
From: JEE Main 2016 (Offline)
Question
If the number of terms in the expansion of is 28, then the sum of the coefficients of all the terms in this expansion, is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B729
Step-by-step explanation
Total no of terms in = = 28
(n+2)(n+1) = 56
Sum of coefficient = (1 - 2 + 4)6 = 36 = 729
(n+2)(n+1) = 56
Sum of coefficient = (1 - 2 + 4)6 = 36 = 729
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This is a previous-year question from JEE Main 2016, 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.