JEE Main 2021 — Logarithm Question with Solution
From: JEE Main 2021 (Online) 26th February Morning Shift
Question
The number of solutions of the equation log4(x 1) = log2(x 3) is _________.
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Show full solutionCorrect answer: 1
Correct answer
1
Step-by-step explanation
But x 2 because it is not satisfying the domain of given equation i.e. log2(x 3) its domain x > 3
finally x is 5
No. of solutions = 1.
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This is a previous-year question from JEE Main 2021, covering the Logarithm 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.