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JEE MATHEMATICS MCQ: INDEFINITE INTEGRATION

1 Easy

1 of 1

Application +4 | -1

If

\int f(x) \mathrm{d} x=-2 \cos \sqrt{x}+C

then

f(x)

is equal to

View answer and explanation

Correct option: B

\frac{\sin \sqrt{x}}{\sqrt{x}}

Option B (

\frac{\sin \sqrt{x}}{\sqrt{x}}

) is correct because differentiating

-2 \cos \sqrt{x}+C

gives

\frac{\sin \sqrt{x}}{\sqrt{x}}

.

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\int \sin ^5 x \cos ^4 x d x=

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is differentibale and

\int\limits_{0}^{t^2} x f(x) d x=\frac{2}{5} t^5

f\left(\frac{4}{25}\right)

\int \frac{1-7 \cos ^2 x}{\sin ^7 x \cos ^2 x} d x=\frac{f(x)}{\sin ^7 x}+C

\int {e}^{{x}^2}\left(2-\frac{1}{{x}^2}\right) {de}={e}^{{x}^2} {f}({x})+{C}

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is equal to (where

{C}

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\int \frac{x^7}{\left(1-x^2\right)^5} d x

\int \,\frac{{a{x^3} + \,\,b{x^2} + c}}{{{x^4}}}\;\,dx