જો $A, B, C$ એ ત્રિકોણના ખૂણાઓ હોય,તો $\sin^2 A + \sin^2 B + \sin^2 C - 2\cos A \cos B \cos C = $

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

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Similar Questions

$\sin^{2} \theta + \cos^{2} \theta + \sec^{2} \theta + \operatorname{cosec}^{2} \theta + \tan^{2} \theta + \cot^{2} \theta$ નું ન્યૂનતમ મૂલ્ય શું છે?

$\frac{1}{\sqrt{2}} \sin \frac{\pi}{6} \cos \frac{\pi}{4} - \cot \frac{\pi}{3} \sec \frac{\pi}{6} + \frac{5 \tan \frac{\pi}{4}}{12 \sin \frac{\pi}{2}}$ નું મૂલ્ય કેટલું થાય?

દરેક $\theta \in R$ માટે $(7 \cos\theta + 24 \sin\theta) \times (7 \sin\theta - 24 \cos\theta)$ નું મહત્તમ મૂલ્ય શોધો.

જો $\sin \theta_1 + \sin \theta_2 + \sin \theta_3 = 3$ હોય,તો $\cos \theta_1 + \cos \theta_2 + \cos \theta_3 = $

જો $\sin \theta + \cos \theta = 1$ હોય,તો $\sin \theta \cos \theta = $

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