JEE Main 2021MathematicsApplication Of DerivativesMaxima And MinimamediumMCQ

JEE Main 2021 — Application Of Derivatives Question with Solution

From: JEE Main 2021 (Online) 20th July Evening Shift

Question

The sum of all the local minimum values of the twice differentiable function f : R R defined by is :

Choose an option

Show full solutionCorrect option: C
Correct answer
C27

Step-by-step explanation

..... (i)

..... (ii)

..... (iii)

Now, is 3rd equation





Use (ii)











x = 1 & 3

Use (iii)



maxima

minima.

Use (i)







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About this question

This is a previous-year question from JEE Main 2021, covering the Application Of Derivatives 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.