यदि $A + B + C = 270^o$ है,तो $\cos 2A + \cos 2B + \cos 2C + 4\sin A \sin B \sin C = $

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $3$

Explore More

Similar Questions

$3\cos \theta - 4\sin \theta$ का अधिकतम मान क्या है?

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

$a \cos x + b \sin x$ का अधिकतम मान क्या है?

$5 \sin^2 \theta + 4 \cos^2 \theta$ का न्यूनतम मान क्या है?

यदि $\alpha + \beta - \gamma = \pi ,$ तो ${\sin ^2}\alpha + {\sin ^2}\beta - {\sin ^2}\gamma = $

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