Mathematics Part-II

Book: Mathematics Part-II

Chapter: 7. Integrals

Subject: Maths - Class 12th

Q. No. 10 of Exercise 7.10

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If then f'(x) is

Given:

Applying product rule,






= -x cos x + sin x – 0


f(x) = -x cos x + sinx



f'(x) = -[{x(-sinx )} + cosx ] + cosx


= x sin x – cos x + cos x


= x sin x


Correct answer is B.

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