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

  • A
    $-1$
  • B
    $1$
  • C
    $\cot ^{2} \theta$
  • D
    $\sin ^{2} \theta$

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જો $0 < \theta < 90$ અને $\sin \theta = \cos 30$ હોય,તો $2 \tan^2 \theta - 1 = \dots$

$(\sin 80^{\circ} + \cos 10^{\circ})(\sin 80^{\circ} - \cos 10^{\circ}) = \ldots \ldots \ldots$

'True' (સાચું) અથવા 'False' (ખોટું) લખો અને તમારા જવાબનું સમર્થન કરો.
$\frac{\tan 47^{\circ}}{\cot 43^{\circ}}=1$

જો $\sin ^{2} 35^{\circ} + \cos ^{2} \theta = 1$ હોય,તો $\theta = \ldots \ldots \ldots \ldots$ ($^{\circ}$ માં)

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

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