$\int \frac{\cos \sqrt{x}}{\sqrt{x}} \, dx =$

  • A
    $\frac{1}{2} \cos \sqrt{x} + c$
  • B
    $2 \sin \sqrt{x} + c$
  • C
    $\frac{1}{2} \sin \sqrt{x} + c$
  • D
    $2 \cos \sqrt{x} + c$

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${x^2} \ne n\pi + 1, n \in N$ (प्राकृत संख्याओं का समुच्चय) के लिए,समाकलन $\int {x\sqrt {\frac{{2\sin \left( {{x^2} - 1} \right) - \sin 2\left( {{x^2} - 1} \right)}}{{2\sin \left( {{x^2} - 1} \right) + \sin 2\left( {{x^2} - 1} \right)}}} } dx$ क्या है?

मान लीजिए $I(x)=\int \frac{6}{\sin ^2 x(1-\cot x)^2} d x$. यदि $I(0)=3$ है,तो $I\left(\frac{\pi}{12}\right)$ का मान ज्ञात कीजिए:

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