$\tan (65^\circ - \theta) - \cot (25^\circ + \theta) - \sec (55^\circ - \theta) + \operatorname{cosec}(35^\circ + \theta) = \ldots \ldots \ldots \ldots$ (जहाँ,$0 < \theta < 25^\circ$)

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

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यदि $1+\sin ^{2} \theta=3 \sin \theta \cos \theta$ है,तो सिद्ध कीजिए कि $\tan \theta=1$ या $\frac{1}{2}$ है।

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न्यूनकोण $\theta$ के लिए,यदि $\cos \theta = \sin \theta$ है,तो $2 \tan^{2} \theta + \sin^{2} \theta + 1 = \ldots$

व्यंजक $\left[\frac{\sin ^{2} 22^{\circ}+\sin ^{2} 68^{\circ}}{\cos ^{2} 22^{\circ}+\cos ^{2} 68^{\circ}}+\sin ^{2} 63^{\circ}+\cos 63^{\circ} \sin 27^{\circ}\right]$ का मान ज्ञात कीजिए।

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न्यूनकोण $A$ और $B$ के लिए,यदि $\tan A = 1$ और $\sin B = \frac{1}{\sqrt{2}}$ है,तो $\cos (A + B) = \dots$

$\Delta ABC$ में,$m\angle A = 90^\circ$,$AB = 5$,$AC = 12$ और $BC = 13$ है। अतः,$\sin C + \cos C = \ldots$

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