The value of $\int \frac{\cos 5 x+\cos 4 x}{1-2 \cos 3 x} d x$ is

JEE MATHEMATICS MCQ: INDEFINITE INTEGRATION

1 Easy

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Application +4 | -1

The value of

\int \frac{\cos 5 x+\cos 4 x}{1-2 \cos 3 x} d x

View answer and explanation

Correct option: B

-\frac{1}{2} \sin 2 x-\sin x+c

Option B (

-\frac{1}{2} \sin 2 x-\sin x+c

) is correct because after simplifying the integrand using trigonometric identities, the integral can be easily evaluated.

Practice All Chapter MCQs →

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

f(x)

\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)

{C}

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

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