$\cos^2 73^\circ + \cos^2 47^\circ + (\cos 73^\circ \cdot \cos 47^\circ)$ નું ચોક્કસ મૂલ્ય શું છે?

  • A
    $1/4$
  • B
    $1/2$
  • C
    $3/4$
  • D
    $1$

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જો $\frac{1}{6} \sin \theta, \cos \theta$ અને $\tan \theta$ સમગુણોત્તર શ્રેણીમાં હોય,તો $\theta$ નો ઉકેલ ગણ શું છે?

જો $\frac{1}{\sin 45^{\circ} \sin 46^{\circ}}+\frac{1}{\sin 46^{\circ} \sin 47^{\circ}}+\ldots$ $45$ પદો સુધી $=\frac{1}{\sin x^{\circ}}$ હોય,તો $\sin \left(\frac{\pi}{2} x\right)=$

જો $\sin x+\sin ^2 x=1$,જ્યાં $x \in\left(0, \frac{\pi}{2}\right)$,તો $(\cos ^{12} x+\tan ^{12} x)+3(\cos ^{10} x+\tan ^{10} x+\cos ^8 x+\tan ^8 x)+(\cos ^6 x+\tan ^6 x)$ ની કિંમત શોધો.

જો $\sin x \cosh y = \cos \theta$,$\cos x \sinh y = \sin \theta$ અને $4 \tan x = 3$ હોય,તો $\sinh^2 y =$

$\sqrt{3} \csc 20^{\circ} - \sec 20^{\circ} = $

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