જો $2\cos^2 \theta - 2\sin^2 \theta = 1$ હોય,તો $\theta = \dots ^\circ$.

  • A
    $15$
  • B
    $30$
  • C
    $45$
  • D
    $60$

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જો $\sin 6 \theta = 32 \cos^5 \theta \sin \theta - 32 \cos^3 \theta \sin \theta + 3x$ હોય,તો $x$ ની કિંમત શોધો:

$3 \tan^6 10^{\circ} - 27 \tan^4 10^{\circ} + 33 \tan^2 10^{\circ} = $

$\cos 15^{\circ} \cos 7.5^{\circ} \sin 7.5^{\circ}$ નું મૂલ્ય શું છે?

જો $\sqrt{\frac{1+\cos A}{1-\cos A}}=\frac{x}{y}$ હોય,તો $\tan A$ ની કિંમત કેટલી થાય?

$\sqrt{\frac{1 - \sin A}{1 + \sin A}} = $

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