JEE MATHEMATICS MCQ: INDEFINITE INTEGRATION

1 Easy

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Understanding +4 | -1

If polynomials

P

and

Q

satisfies

\int((3 x-1) \cos x+(1-2 x) \sin x) d x

=P \cos x+Q \sin x

(ignoring the constant of integration) then

View answer and explanation

Correct option: D

Q=3(x-1)

Option D (

Q=3(x-1)

) is correct because after integrating by parts and comparing coefficients, Q is found to be 3(x-1).

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