$\tan ^{-1} \frac{3}{4} + \tan ^{-1} \frac{3}{5} - \tan ^{-1} \frac{8}{19} = $

  • A
    $\frac{\pi }{4}$
  • B
    $\frac{\pi }{3}$
  • C
    $\frac{\pi }{6}$
  • D
    इनमें से कोई नहीं

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Similar Questions

मान लीजिए $a \neq 0$ के लिए $S_a(x) = \operatorname{Sec}^{-1}\left(\frac{x}{a}\right) + \operatorname{Sec}^{-1}(a)$ है। यदि $a \neq b$ के लिए $S_a(x) = S_b(x)$ है,तो $x =$

$x$ के लिए हल करें: $\tan^{-1}\left(\frac{1-x}{1+x}\right) = \frac{1}{2} \tan^{-1} x$,जहाँ $x > 0$.

यदि $y = \sin^{-1}(x\sqrt{1 - x} + \sqrt{x}\sqrt{1 - x^2})$ है,तो $\frac{dy}{dx} = $

$\cot ^{ - 1}\left[ \frac{\sqrt {1 - \sin x} + \sqrt {1 + \sin x}}{\sqrt {1 - \sin x} - \sqrt {1 + \sin x}} \right] = $

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?

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