JEE Main 2020 — Differentiation Question with Solution
From: JEE Main 2020 (Online) 7th January Morning Slot
Question
If
:
:
Choose an option
Show full solutionCorrect option: A
Correct answer
A4
Step-by-step explanation
=
=
=
=
At =
= -(sin + cos)
and |sin| = sin
y() =
= -1 - cot
= cosec2
So at = ,
= cosec2 = 4
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This is a previous-year question from JEE Main 2020, covering the Differentiation 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.