જો $\alpha = \frac{\sin^3 x}{\cos^2 x}$,$\beta = \frac{\cos^3 x}{\sin^2 x}$ અને $\sin x + \cos x = k$ હોય,તો $\alpha \sin x + \beta \cos x + 3 = $

  • A
    $\frac{2}{(k^2-1)^2}$
  • B
    $\frac{4}{(k^2-1)^2}$
  • C
    $\frac{k^2-1}{2}$
  • D
    $\frac{(k^2-1)^2}{4}$

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Similar Questions

જો $x = 3 \sin \theta$,$y = 3 \cos \theta \cos \phi$,અને $z = 3 \cos \theta \sin \phi$ હોય,તો $x^{2} + y^{2} + z^{2} =$

$\sqrt{3} \operatorname{cosec} 20^{\circ} - \sec 20^{\circ}$ ની કિંમત શોધો.

અંતરાલ $(0, 2\pi)$ માં સમીકરણ $\cos x \cos \left(\frac{\pi}{3}-x\right) \cos \left(\frac{\pi}{3}+x\right)=\frac{1}{4}$ ના ઉકેલોનો સરવાળો શોધો.

સમીકરણોની પ્રણાલી: $2x \cos^2 \theta + y \sin 2\theta - 2 \sin \theta = 0$,$x \sin 2\theta + 2y \sin^2 \theta = -2 \cos \theta$,અને $x \sin \theta - y \cos \theta = 0$,$\theta$ ના તમામ મૂલ્યો માટે,શું કરી શકે છે:

$\cos ^4 \frac{\pi}{12} + \cos ^4 \frac{5 \pi}{12} + \cos ^4 \frac{7 \pi}{12} + \cos ^4 \frac{11 \pi}{12} = $

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