જો $\tan \theta = 1$ હોય,તો $\sin \theta \cdot \cos \theta = \dots$

  • A
    $2$
  • B
    $1$
  • C
    $\frac{1}{2}$
  • D
    $\frac{1}{4}$

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જો $1+\sin ^{2} \theta=3 \sin \theta \cos \theta$ હોય,તો સાબિત કરો કે $\tan \theta=1$ અથવા $\frac{1}{2}$ થાય.

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$\cos 35^{\circ} = \ldots \ldots \ldots$

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

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

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

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