$\sec (90^\circ - \theta) = \dots$

  • A
    $\cos \theta$
  • B
    $\operatorname{cosec} \theta$
  • C
    $\tan \theta$
  • D
    $\cot \theta$

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લઘુકોણ $\theta$ માટે,જો $\cos \theta = \sin \theta$ હોય,તો $2 \tan^{2} \theta + \sin^{2} \theta + 1 = \ldots$

લઘુકોણ $A$ અને $B$ માટે,જો $\tan A = 1$ અને $\sin B = \frac{1}{\sqrt{2}}$ હોય,તો $\cos (A + B) = \dots$

$\frac{1}{\cos ^{2} \theta}-\frac{1}{\cot ^{2} \theta} = \dots$

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