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

  • A
    $x \cot \left(\frac{x}{2}\right)+c$
  • B
    $\cot \left(\frac{x}{2}\right)+c$
  • C
    $\tan \left(\frac{x}{2}\right)+c$
  • D
    $x \tan \left(\frac{x}{2}\right)+c$

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यदि $\int {\frac{{\tan x}}{{1 + \tan x + {{\tan }^2}x}}dx} = x - \frac{K}{{\sqrt A }}{\tan ^{ - 1}}\left( {\frac{{K\tan x + 1}}{{\sqrt A }}} \right) + C,$ ($C$ समाकलन का एक स्थिरांक है),तो क्रमित युग्म $(K, A)$ बराबर है:

$\int(\sqrt{\tan x}+\sqrt{\cot x}) d x=$

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यदि $\int \frac{5 \tan (x)}{\tan (x)-2} d x = x + a \log |\sin (x) - 2 \cos (x)| + k$ है,तो $a$ का मान ज्ञात कीजिए।

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

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