यदि $f(x)$ का प्रतिअवकलज (antiderivative) $e^x$ है और $g(x)$ का प्रतिअवकलज $\cos x$ है,तो $\int f(x) \cos x \, dx + \int g(x) e^x \, dx = $

  • A
    $f(x)g(x) + c$
  • B
    $f(x) + g(x) + c$
  • C
    $e^x \cos x + c$
  • D
    $f(x) / g(x) + c$

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यदि $\int e^x\left(\frac{x \sin ^{-1} x}{\sqrt{1-x^2}}+\frac{\sin ^{-1} x}{\left(1-x^2\right)^{3 / 2}}+\frac{x}{1-x^2}\right) d x=g(x)+C$ जहाँ $C$ समाकलन स्थिरांक है,तो $g \left(\frac{1}{2}\right)$ का मान ज्ञात कीजिए :

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