$\tan 5^{\circ} \cdot \tan 25^{\circ} \cdot \tan 45^{\circ} \cdot \tan 65^{\circ} \cdot \tan 85^{\circ}$ ની કિંમત $\ldots \ldots \ldots \ldots$ છે.

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

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સાબિત કરો કે $\sec A(1-\sin A)(\sec A+\tan A)=1$.

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$\sec 55^{\circ} \cdot \sin 35^{\circ} + \cos 35^{\circ} \cdot \operatorname{cosec} 55^{\circ} = \ldots \ldots \ldots \ldots$

જો $\sin A + \sin^2 A = 1$ હોય,તો $(\cos^2 A + \cos^4 A)$ પદાવલિનું મૂલ્ય કેટલું થાય?

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જો $a \sin \theta = 3$ અને $a \cos \theta = 4$ હોય,તો $a = \dots$ (જ્યાં $a > 0$).

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

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