$\tan \left(\frac{\pi}{4}+\frac{1}{2} \cos ^{-1}\left(\frac{a}{b}\right)\right)+\tan \left(\frac{\pi}{4}-\frac{1}{2} \cos ^{-1}\left(\frac{a}{b}\right)\right)$ का मान ज्ञात कीजिए।

  • A
    $\frac{2 a}{b}$
  • B
    $\frac{2 b}{a}$
  • C
    $\frac{a}{b}$
  • D
    $\frac{b}{a}$

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मान लीजिए $f(x) = \cos^{-1}\left(\frac{2x}{1+x^2}\right) + \sin^{-1}\left(\frac{1-x^2}{1+x^2}\right)$,तो $f(1) + f(2)$ का मान ज्ञात कीजिए।

$\sin^{-1} x - \sin^{-1} 2x = \pm \frac{\pi}{3}$ का हल है

यदि $\pi \le x \le 2\pi $ है,तो ${\cos ^{ - 1}}(\cos x)$ किसके बराबर है?

यदि $3 \sin ^{-1}\left(\frac{2 x}{1+x^2}\right)-4 \cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right)+2 \tan ^{-1}\left(\frac{2 x}{1-x^2}\right)=\frac{\pi}{3}$ है,तो $x$ का मान ज्ञात कीजिए।

समीकरण $2\cos^{-1}x + \sin^{-1}x = \frac{11\pi}{6}$ के

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