यदि $\sin \left(\cot ^{-1}(x+1)\right)=\cos \left(\tan ^{-1} x\right)$ है,तो $x$ का मान किसके बराबर है?

  • A
    $-\frac{1}{2}$
  • B
    $-\frac{1}{3}$
  • C
    $\frac{1}{2}$
  • D
    $\frac{1}{3}$

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$\cos ^{-1}\left(\frac{-1}{2}\right)-2 \sin ^{-1}\left(\frac{1}{2}\right)+3 \cos ^{-1}\left(\frac{-1}{\sqrt{2}}\right)-4 \tan ^{-1}(-1)$ का मान ज्ञात कीजिए।

$\sin^{-1} \sqrt{\frac{x}{x+a}}$ का मान किसके बराबर है?

यदि $\operatorname{Tan}^{-1} \frac{1}{3}+\operatorname{Tan}^{-1} \frac{1}{7}+\operatorname{Tan}^{-1} \frac{1}{13}+\ldots+\operatorname{Tan}^{-1} \frac{1}{n^2+n+1}=\operatorname{Tan}^{-1} \theta$ है,तो $\theta=$

$x > 0$ के लिए $\tan ^{-1} \frac{1-x}{1+x}=\frac{1}{2} \tan ^{-1} x$ को हल करें।

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यदि $y = \tan^{-1} \left( \frac{x^{1/3} + a^{1/3}}{1 - x^{1/3}a^{1/3}} \right)$ है,तो $\frac{dy}{dx} = $

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