यदि $\cos \theta = \frac{1}{\sqrt{2}}$ है,तो $\theta = \ldots$ ($^\circ$ में)

  • A
    $30$
  • B
    $45$
  • C
    $60$
  • D
    $90$

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Similar Questions

$\Delta ABC$ में,$m \angle C = 90^{\circ}$ और $\tan A = \frac{1}{\sqrt{3}}$ है,तो $\sin A = \ldots$

'True' (सत्य) या 'False' (असत्य) लिखिए और अपने उत्तर का औचित्य बताइए।
$(\tan \theta+2)(2 \tan \theta+1)=5 \tan \theta+\sec ^{2} \theta$

यदि $3 \sin \theta = 4 \cos \theta$ है,तो $\tan \theta = \ldots$

सिद्ध कीजिए कि,$\tan \theta + \tan (90^{\circ} - \theta) = \sec \theta \sec (90^{\circ} - \theta)$

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

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