$\left(\sin 70^{\circ}\right)\left(\cot 10^{\circ} \cot 70^{\circ}-1\right)$ का मान है

  • A
    $1$
  • B
    $0$
  • C
    $3 / 2$
  • D
    $2 / 3$

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समीकरण $e^{\sin x} - e^{-\sin x} - 4 = 0$ के वास्तविक मूलों की संख्या क्या है?

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$\frac{1+\cos \theta-\sin \theta}{1+\cos \theta+\sin \theta}+\frac{1+\cos \theta+\sin \theta}{1+\cos \theta-\sin \theta}=$

$\sin ^2 76^{\circ}+\sin ^2 16^{\circ}-\sin 76^{\circ} \sin 16^{\circ} = $

यदि $x: y: z = \tan \left(\frac{\pi}{15}+\alpha\right): \tan \left(\frac{\pi}{15}+\beta\right): \tan \left(\frac{\pi}{15}+\gamma\right)$ है,तो $\frac{z+x}{z-x} \sin ^2(\gamma-\alpha)+\frac{x+y}{x-y} \sin ^2(\alpha-\beta)+\frac{y+z}{y-z} \sin ^2(\beta-\gamma)$ का मान ज्ञात कीजिए।

यदि $\sin \theta + \cos \theta = p$ और $\sin^3 \theta + \cos^3 \theta = q$ है,तो $p(p^2 - 3)$ का मान ज्ञात कीजिए।

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