यदि $A = \sin^8 \theta + \cos^{14} \theta$ है,तो $\theta$ के सभी वास्तविक मानों के लिए:

  • A
    $A \ge 1$
  • B
    $0 < A \le 1$
  • C
    $1 < 2A \le 3$
  • D
    इनमें से कोई नहीं

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मान लीजिए $A$ और $B$ कथन हैं:
$A: \cos \alpha + \cos \beta + \cos \gamma = 0$
$B: \sin \alpha + \sin \beta + \sin \gamma = 0$
यदि $\cos (\alpha - \beta) + \cos (\beta - \gamma) + \cos (\gamma - \alpha) = -\frac{3}{2}$ है,तो:

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यदि $x = \sec \theta + \tan \theta$ है,तो $x + \frac{1}{x} = $

यदि $\cot 20^{\circ} = p$ है,तो $\frac{\tan 160^{\circ} - \tan 110^{\circ}}{1 + \tan 160^{\circ} \tan 110^{\circ}} =$

यदि $a \cos^3 \alpha + 3a \cos \alpha \sin^2 \alpha = m$ और $a \sin^3 \alpha + 3a \cos^2 \alpha \sin \alpha = n$ है,तो $(m + n)^{2/3} + (m - n)^{2/3}$ का मान ज्ञात कीजिए।

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$\cos \alpha \sin (\beta - \gamma ) + \cos \beta \sin (\gamma - \alpha ) + \cos \gamma \sin (\alpha - \beta ) = $

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