$\cos A + \cos (240^\circ + A) + \cos (240^\circ - A) = $

  • A
    $\cos A$
  • B
    $0$
  • C
    $\sqrt{3} \sin A$
  • D
    $\sqrt{3} \cos A$

Explore More

Similar Questions

यदि $\sin A + \sin 2A = x$ और $\cos A + \cos 2A = y$ है,तो $({x^2} + {y^2})({x^2} + {y^2} - 3) = $

यदि $\tan 20^{\circ} = k$ है,तो $\frac{\tan 250^{\circ} + \tan 340^{\circ}}{\tan 200^{\circ} - \tan 110^{\circ}} = $

$(8 \sec^2 \theta + 2 \cos^2 \theta)$ का न्यूनतम मान किसके बराबर है?

यदि $\sin 2\theta + \sin 2\phi = 1/2$ और $\cos 2\theta + \cos 2\phi = 3/2$ है,तो $\cos^2(\theta - \phi) = $

यदि $\sin \theta = \frac{3}{5}$ है,तो $\frac{\tan \theta + \cos \theta}{\cot \theta + \operatorname{cosec} \theta}$ का मान ज्ञात कीजिए।

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