JEE Main 2021 — Functions Question with Solution
From: JEE Main 2021 (Online) 24th February Evening Shift
Question
If a + = 1, b + = 2 and , then the value of the expression is __________.
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Show full solutionCorrect answer: 2
Correct answer
2
Step-by-step explanation
........(i)
Replace with
..... (ii)
(i) + (ii)
Replace with
..... (ii)
(i) + (ii)
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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.