$\int \frac{x+\sin x}{1+\cos x} d x=$

  • A
    $x \tan \left(\frac{x}{2}\right)+c$
  • B
    $\log (x+\sin x)+c$
  • C
    $\tan \left(\frac{x}{2}\right)+c$
  • D
    $\log (1+\cos x)+c$

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$\int \frac{\cos 2 x \cdot \sin 4 x}{\cos ^4 x(1+\cos ^2 2 x)} d x=$

$\int \frac{\cos 2 x \cdot \sin 4 x}{\cos ^4 x\left(1+\cos ^2 2 x\right)} d x=$

List-$I$ की निम्नलिखित वस्तुओं को List-$II$ में सुमेलित कीजिए। सही विकल्प चुनिए।
List-$I$List-$II$
$1. \int \frac{\sin^2 x}{\cos^4 x} dx$$A. \frac{\tan^2 x}{2} + \ln|\cos x| + c$
$2. \int \frac{\sin^4 x}{\cos^2 x} dx$$B. \cos x + \sec x + c$
$3. \int \frac{\sin^3 x}{\cos^2 x} dx$$C. \frac{\tan^3 x}{3} + c$
$4. \int \frac{\sin^3 x}{\cos^3 x} dx$$D. \tan x + \frac{\sin 2x}{4} - \frac{3x}{2} + c$
$E. \cos x - \sec x + c$

यदि $f(x) = g(x)$ है,तो $\int {f'(x) \cdot g(x)} \, dx$ का मान क्या होगा?

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