JEE Main 2021 — Functions Question with Solution
From: JEE Main 2021 (Online) 25th February Evening Shift
Question
A function f(x) is given by , then the sum of the series is equal to :
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
..... (i)
.... (ii)
Adding equation (i) and (ii)
\eqalign{ & : \cr & : \cr}
and
Sum =
.... (ii)
Adding equation (i) and (ii)
\eqalign{ & : \cr & : \cr}
and
Sum =
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This is a previous-year question from JEE Main 2021, covering the Functions 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.