$\int \frac{\sqrt{\cos 2 x}}{\sin x} d x=$

  • A
    $\frac{1}{2 \sqrt{2}} \log \left|\frac{\sqrt{2}+\sqrt{1-\tan ^2 x}}{\sqrt{2}-\sqrt{1-\tan ^2 x}}\right|-\frac{1}{2} \log \left|\frac{1-\sqrt{1-\tan ^2 x}}{1+\sqrt{1-\tan ^2 x}}\right|+c$
  • B
    $\frac{1}{\sqrt{2}} \log \left|\frac{\sqrt{2}+\sqrt{1-\tan ^2 x}}{\sqrt{2}-\sqrt{1-\tan ^2 x}}\right|-\frac{1}{2} \log \left|\frac{1+\sqrt{1-\tan ^2 x}}{1-\sqrt{1-\tan ^2 x}}\right|+c$
  • C
    $\frac{1}{4 \sqrt{2}} \log \left|\frac{\sqrt{2}-\sqrt{1-\tan ^2 x}}{\sqrt{2}+\sqrt{1-\tan ^2 x}}\right|+\frac{1}{2} \log \left|\frac{1-\sqrt{1-\tan ^2 x}}{1+\sqrt{1-\tan ^2 x}}\right|+c$
  • D
    $\frac{1}{4 \sqrt{2}} \log \left|\frac{2-\sqrt{1-\tan ^2 x}}{2+\sqrt{1-\tan ^2 x}}\right|+\frac{1}{2 \sqrt{2}} \log \left|\frac{1-\sqrt{1-\tan ^2 x}}{1+\sqrt{1-\tan ^2 x}}\right|+c$

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दिया गया है कि $\int \frac{1}{x^2+a^2} dx = \frac{1}{a} \tan^{-1}\left(\frac{x}{a}\right) + C$. यदि $\int \frac{1}{x^4+3x^2+1} dx = a \cdot \tan^{-1}\left(\frac{b(x^2-1)}{x}\right) + c \cdot \tan^{-1}\left(\frac{d(x^2+1)}{x}\right) + k$, जहाँ $k$ समाकलन का एक स्थिरांक है, तो $5(c+d+ab) = $

$\int \frac{d x}{\left(2 a x+x^2\right)^{\frac{3}{2}}} = $

$\int \sqrt{\frac{1-\sqrt{x}}{1+\sqrt{x}}} \, dx = $ (जहाँ $C$ एक समाकलन स्थिरांक है)

मान लीजिए $I(x)=\int\frac{3dx}{(4x+6)(\sqrt{4x^{2}+8x+3})}$ और $I(0)=\frac{\sqrt{3}}{4}+20$ है। यदि $I(\frac{1}{2})=\frac{a\sqrt{2}}{b}+c$, जहाँ $a, b, c \in N$ और $gcd(a,b)=1$, तो $a+b+c$ का मान ज्ञात कीजिए:

यदि $\int(1+x) \log \left(1+x^2\right) d x=\left(x+\frac{x^2}{2}+\frac{1}{2}\right) \log \left(1+x^2\right)+g(x)+C$ है,तो $g(x)=$

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