यदि $x = y \cos \frac{2\pi}{3} = z \cos \frac{4\pi}{3}$ है,तो $xy + yz + zx = $

  • A
    $-1$
  • B
    $0$
  • C
    $1$
  • D
    $2$

Explore More

Similar Questions

$\cos 41^{\circ} \cdot \cos 42^{\circ} \cdot \cos 43^{\circ} \cdot \cos 44^{\circ} \cdot \cos 45^{\circ} \cdot \cos 46^{\circ} \cdot \cos 47^{\circ} \cdot \cos 48^{\circ} \cdot \cos 49^{\circ}$ का मान क्या है?

यदि $\sin^2 \theta = \frac{x^2 + y^2 + 1}{2x}$ है,तो $x$ का मान क्या होना चाहिए?

$\sin 75^\circ = $

यदि $\cos \theta = \frac{x^{2}-y^{2}}{x^{2}+y^{2}}$ है,तो $\cot \theta$ का मान ज्ञात कीजिए (जहाँ $0^{\circ} \leq \theta \leq 90^{\circ}$)

Difficult
View Solution

यदि $\sin x + \sin y = 3(\cos y - \cos x)$ है,तो $\frac{\sin 3x}{\sin 3y}$ का मान क्या है?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo