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) = $

  • A
    $3$
  • B
    $5$
  • C
    $8$
  • D
    $10$

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फलन का समाकलन कीजिए: $\frac{x+3}{x^{2}-2x-5}$

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$\int \frac{x^2}{(x\sin x + \cos x)^2} \, dx = $

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यदि $\int \frac{a \cos x-2 \sin x}{b \sin x+5 \cos x} d x=\frac{7}{41} x+\frac{22}{41} \log |b \sin x+5 \cos x|+C, (a>0, b>0)$, तो $\int \frac{d x}{b+a \cos x}=$

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

यदि $\int \sin ^{-1}\left(\sqrt{\frac{x}{1+x}}\right) d x=A(x) \tan ^{-1}(\sqrt{x})+B(x)+C$ है,जहाँ $C$ समाकलन का एक स्थिरांक है,तो क्रमित युग्म $(A(x), B(x))$ क्या हो सकता है?

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