$\Delta ABC$ માં,$\sin A \cos B \cos C + \sin B \cos C \cos A + \sin C \cos A \cos B$ નું મૂલ્ય શું છે?

  • A
    $0$
  • B
    $1$
  • C
    $\frac{3\sqrt{3}}{8}$
  • D
    $\sin A \sin B \sin C$

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જો $\cos A + \cos B + \cos C = 0$ અને $\sin A + \sin B + \sin C = 0$ હોય,તો $\cos (A - B) + \cos (B - C) + \cos (C - A)$ ની કિંમત શોધો.

જો $5 \sin \theta + 3 \cos \left(\theta + \frac{\pi}{3}\right) + 3$ એ $\alpha$ અને $\beta$ ની વચ્ચે હોય ($\alpha, \beta$ સહિત),તો $(\alpha - \beta)(\alpha + \beta - 6) = $

વિધેય $|\sin 4x + 3|$ ની મહત્તમ અને ન્યૂનતમ કિંમતો શોધો.

$\left(2 \cos^2 18^{\circ} - \sin 18^{\circ}\right) \left(\cos \theta + 3 \sqrt{2} \cos \left(\theta + \frac{\pi}{4}\right) + 3\right)$ ની મહત્તમ કિંમત શોધો.

જો $f(x) = \cos^2 x + \sec^2 x$ હોય,તો

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