જો $ABCD$ એક ચક્રીય ચતુષ્કોણ હોય,તો $\cos A - \cos B + \cos C - \cos D$ ની કિંમત શું થાય?

  • A
    $0$
  • B
    $1$
  • C
    $2(\cos B - \cos D)$
  • D
    $2(\cos A - \cos C)$

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Similar Questions

$\cot \frac{\pi}{20} \cot \frac{3 \pi}{20} \cot \frac{5 \pi}{20} \cot \frac{7 \pi}{20} \cot \frac{9 \pi}{20}$ નું મૂલ્ય શોધો.

Difficult
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$\cos \frac{\pi }{7} \cos \frac{2\pi }{7} \cos \frac{4\pi }{7} = $

કિંમત શોધો: $\tan A + \cot (180^\circ + A) + \cot (90^\circ + A) + \cot (360^\circ - A)$

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

જો $\cot 20^{\circ} = p$ હોય,તો $\frac{\tan 160^{\circ} - \tan 110^{\circ}}{1 + \tan 160^{\circ} \tan 110^{\circ}} =$

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