$\cos 1^\circ + \cos 2^\circ + \cos 3^\circ + \dots + \cos 180^\circ = $

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

Explore More

Similar Questions

जब परिभाषित हो,तो $\frac{\tan x}{\tan 3x}$ का मान कभी भी किसके बीच नहीं होता है?

Difficult
View Solution

$\Delta XYZ$ में $\angle Y$ समकोण है। यदि $\cos X = \frac{3}{5}$ है,तो $\operatorname{cosec} Z$ का मान क्या है?

$\tan 75^\circ - \cot 75^\circ = $

यदि $\frac{2\sin \alpha}{1 + \cos \alpha + \sin \alpha} = y$ है,तो $\frac{1 - \cos \alpha + \sin \alpha}{1 + \sin \alpha} = $

$\frac{\tan ^{2} \theta}{\sec \theta+1}-\sec \theta$ 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