જો $\alpha$ બીજા ચરણમાં હોય,તો $\sqrt{\frac{1 - \sin \alpha}{1 + \sin \alpha}} - \sqrt{\frac{1 + \sin \alpha}{1 - \sin \alpha}} = $

  • A
    $2 \tan \alpha$
  • B
    $-2 \tan \alpha$
  • C
    $2 \cot \alpha$
  • D
    $-2 \cot \alpha$

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જો $\tan \theta = 2$ અને $\theta$ ત્રીજા ચરણમાં હોય,તો $\sec \theta$ ની કિંમત શોધો.

જો $\left[1-\cos \left(\frac{\pi}{2}+\alpha\right)+\sin \left(\frac{3 \pi}{2}+\alpha\right)\right]^2+\left[1-\sin \left(\frac{3 \pi}{2}-\alpha\right)-\cos \left(\frac{3 \pi}{2}+\alpha\right)\right]^2=a+b \sin ^2\left(\frac{\pi}{4}+\alpha\right)$,હોય તો $a^2+b^2=$

જો $\theta$ ત્રીજા ચરણમાં હોય અને $\cos \theta = -\frac{3}{5}$ હોય,તો $\tan \theta$ ની કિંમત શોધો.

જો $A, B, C, D$ એ ચક્રીય ચતુષ્કોણના ક્રમમાં લીધેલા ખૂણાઓ હોય,તો $\cos(180^{\circ} + A) + \cos(180^{\circ} - B) + \cos(180^{\circ} - C) - \sin(90^{\circ} - D) =$

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$\sin \left(\frac{5 \pi}{3}\right) + \sec \left(\frac{13 \pi}{3}\right) = $

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