JEE Main 2021 — Sequences And Series Question with Solution
From: JEE Main 2021 (Online) 26th February Evening Shift
Question
The sum of the series
is equal to :
is equal to :
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Put 2n + 1 = r, where r = 3, 5, 7, .......
=
Now,
=
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This is a previous-year question from JEE Main 2021, covering the Sequences And Series 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.