જો $(1+\tan ^{2} \theta)=\frac{625}{49}$ અને $\theta$ લઘુકોણ હોય,તો $\sqrt{\sin \theta+\cos \theta}$ ની કિંમત શું થાય?

  • A
    $1$
  • B
    $\frac{5}{4} \sqrt{\frac{31}{42}}$
  • C
    $\frac{\sqrt{31}}{5}$
  • D
    $\frac{5}{7}$

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$\tan 4^{\circ} \tan 43^{\circ} \tan 47^{\circ} \tan 86^{\circ}$ નું મૂલ્ય શોધો.

જો $\tan \theta + \cot \theta = 2$ હોય,તો $\sin \theta =$

જો $\theta$ પ્રથમ ચરણમાં હોય અને $\tan \theta = \frac{3}{4}$ હોય,તો $\frac{\tan \left(\frac{\pi}{2}-\theta\right)-\sin (\pi-\theta)}{\sin \left(\frac{3 \pi}{2}+\theta\right)-\cot (2 \pi-\theta)} = $

$\sin 12^\circ \sin 24^\circ \sin 48^\circ \sin 84^\circ = $

જો $\tan A + \sin A = m$ અને $\tan A - \sin A = n$ હોય,તો $\frac{(m^2 - n^2)^2}{mn} = $

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