JEE Main 2020MathematicsLimitsEasyNumerical

JEE Main 2020Limits Question with Solution

JEE Main 2020 (07 Jan Shift 1)

Question

limx23x+33-x-123-x2-31-x is equal to 

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Show full solutionCorrect answer: 36
Correct answer
36

Step-by-step explanation

Let, 3x2=t, x2t3

limt3t2+27t2-121t-3t2=limt3t4+27-12t2t-3

limt3t2-3t+3t-3t-3=6×6=36

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About this question

This is a previous-year question from JEE Main 2020, covering the Limits 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.