यदि $\cos x = \tan y$,$\cot y = \tan z$ और $\cot z = \tan x$ है,तो $\sin x$ का मान ज्ञात कीजिए।

  • A
    $\frac{\sqrt{5}+1}{4}$
  • B
    $\frac{\sqrt{5}-1}{4}$
  • C
    $\frac{\sqrt{5}+1}{2}$
  • D
    $\frac{\sqrt{5}-1}{2}$

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व्यंजक $1 - \frac{\sin^2 y}{1 + \cos y} + \frac{1 + \cos y}{\sin y} - \frac{\sin y}{1 - \cos y}$ का मान किसके बराबर है?

यदि $\sin \theta + \cos \theta = m$ और $\sec \theta + \text{cosec} \theta = n$ है,तो $n(m + 1)(m - 1) = $

$\cos ^2 5^{\circ}-\cos ^2 15^{\circ}-\sin ^2 15^{\circ}+\sin ^2 35^{\circ}+\cos 15^{\circ} \sin 15^{\circ}-\cos 5^{\circ} \sin 35^{\circ} = $

गुणनफल $(1+\tan 1^{\circ})(1+\tan 2^{\circ})(1+\tan 3^{\circ}) \dots (1+\tan 45^{\circ})$ का मान क्या है?

यदि $A, B, C, D$ एक चक्रीय चतुर्भुज के कोण हैं,तो $\cos A + \cos B + \cos C + \cos D = $

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