$\cos (40^{\circ}-\theta)-\sin (50^{\circ}+\theta) = \ldots \ldots \ldots \ldots$

  • A
    $\sin 40^{\circ}$
  • B
    $\sin 10^{\circ}$
  • C
    $2$
  • D
    $0$

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Similar Questions

यदि $\sin x = \sin 60^{\circ} \cdot \cos 30^{\circ} - \cos 60^{\circ} \cdot \sin 30^{\circ}$ है,तो $x = \ldots$ ($^{\circ}$ में)

$\tan ^{2} \theta - \sec ^{2} \theta = \ldots \ldots \ldots$

यदि $\tan \theta = \frac{4}{3}$ है,तो $\frac{5 \sin \theta + 2 \cos \theta}{3 \sin \theta - \cos \theta} = \ldots \ldots$

$\Delta ABC$ में,$m \angle C = 90^{\circ}$ और $\cos B = \frac{1}{2}$ है,तो $\operatorname{cosec} A = \ldots$

$2 \sin ^{2} \theta+4 \sec ^{2} \theta+5 \cot ^{2} \theta+2 \cos ^{2} \theta-4 \tan ^{2} \theta-5 \operatorname{cosec}^{2} \theta = \dots$

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