यदि $I=\int \frac{\sin x+\sin ^3 x}{\cos 2 x} \,d x=P \cos x+Q \log \left|\frac{\sqrt{2} \cos x-1}{\sqrt{2} \cos x+1}\right|+c,$ (जहाँ $c$ समाकलन का एक स्थिरांक है),तो $P$ और $Q$ के मान क्रमशः क्या हैं?

  • A
    $\frac{1}{2}, \frac{3}{4 \sqrt{2}}$
  • B
    $\frac{1}{2}, \frac{-3}{4 \sqrt{2}}$
  • C
    $\frac{1}{2}, \frac{3}{2 \sqrt{2}}$
  • D
    $\frac{1}{2}, \frac{-3}{2 \sqrt{2}}$

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

$\int \frac{x+\sin x}{1+\cos x} d x$ का मान ज्ञात कीजिए।

$\int \sqrt{\frac{1 - \sqrt{x}}{1 + \sqrt{x}}} \, dx = $

$\int \frac{\sin x+\sin ^3 x}{\cos 2 x} \,d x=A \cos x+B \log |f(x)|+c$ (जहाँ $c$ समाकलन का एक स्थिरांक है)। तो $A, B$ और $f(x)$ के मान हैं:

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