$\int \frac{2x+5}{\sqrt{7-6x-x^2}} \, dx = A \sqrt{7-6x-x^2} + B \sin^{-1}\left(\frac{x+3}{4}\right) + c$ (जहाँ $c$ समाकलन का एक स्थिरांक है),तो $A+B$ का मान ज्ञात कीजिए।

  • A
    -$3$
  • B
    $1$
  • C
    -$1$
  • D
    $3$

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$\int \sqrt{x^2-8 x+7} \, dx = $ . . . . . . $+ C$.

यदि $\int \frac{(x^2-1)}{(x+1)^2 \sqrt{x(x^2+x+1)}} dx = A \tan^{-1}\left(\sqrt{\frac{x^2+x+1}{x}}\right) + C$, जहाँ $C$ एक स्थिरांक है, तो $A$ का मान ज्ञात कीजिए।

$\int \left[ \log(\log x) + \frac{1}{(\log x)^2} \right] dx = $

$\int \frac{1}{(x+2) \sqrt{x^2+x+2}} \, dx =$

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