JEE Main 2019MathematicsDefinite IntegrationNewton Lebnitz Rule Of DifferentiationmediumMCQ

JEE Main 2019Definite Integration Question with Solution

From: JEE Main 2019 (Online) 10th January Evening Slot

Question

If  f(t) dt = x2 + t2f(t) dt then f ' is -

Choose an option

Show full solutionCorrect option: C
Correct answer
C

Step-by-step explanation

f(t) dt = x2 + t2f(t) dt           f ' = ?

Differentiate w.r.t. 'x'

f(x) = 2x + 0 x2 f(x)

f(x) = f '(x) =

f '(x) =

f '

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Definite Integration chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2019, covering the Definite Integration 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.