$\triangle ABC$ में, यदि $\angle C = \frac{\pi}{2}$ है, तो $\tan^{-1}\left(\frac{a}{b+c}\right) + \tan^{-1}\left(\frac{b}{c+a}\right) + \tan^{-1}\left(\frac{c}{a+b}\right) =$

  • A
    $\tan^{-1}\left(\frac{r_3}{r}\right)$
  • B
    $\tan^{-1}\left(\frac{r_1+r_2}{r_3}\right)$
  • C
    $\tan^{-1}\left(\frac{1}{r}\right)$
  • D
    $\tan^{-1}\left(\frac{r_1+r_2+r_3}{r}\right)$

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Similar Questions

$\sin(3 \sin^{-1}(1/5))$ का मान ज्ञात कीजिए।

यदि $\sin^{-1} x + \sin^{-1} y + \sin^{-1} z = \frac{\pi}{2}$ है,तो $x^2 + y^2 + z^2 + 2xyz$ का मान क्या होगा?

यदि $0 \le x \le 1$ और $(\sin^{-1} x)^3 + (\cos^{-1} x)^3 = a\pi^3$ है, तो $a$ का परिसर ज्ञात कीजिए।

$\cos \left[\sec ^{-1} x+\operatorname{cosec}^{-1} x\right], |x| \geq 1$ का मान . . . . . . के बराबर है।

यदि $y = \cos^{-1}\left( \frac{3\cos x + 4\sin x}{5} \right)$ है,तो $\frac{dy}{dx} = $

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