Back to INDEFINITE INTEGRATION

JEE MATHEMATICS MCQ: INDEFINITE INTEGRATION

1 Medium

1 of 1

Application +4 | -1

If the primitive of

\frac{1}{{f\left( x \right)}}

is equal to

\log \,\,{\left\{ {f\left( x \right)} \right\}^2}\,\, + \,\,c,\,\,\mathrm{then}\,\,f\left( x \right)

is

View answer and explanation

Correct option: B

\frac{x}{2}\,\, + \,\,d

Option B (

\frac{x}{2}\, + \,d

) is correct because differentiating

\log \,{\left\{ {f\left( x \right)} \right\}^2}\, + \,c

gives

\frac{1}{{f\left( x \right)}}

when

f(x) = \frac{x}{2} + d

.

More Questions from INDEFINITE INTEGRATION

Practice All Chapter MCQs →

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

f(x)

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}

{f}\left(\frac{1}{2}\right)=2

f(1)

is equal to (where

{C}

is an arbitrary constant)

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

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