$\cos 24^{\circ} + \cos 55^{\circ} + \cos 125^{\circ} + \cos 204^{\circ} + \cos 300^{\circ}$ નું મૂલ્ય શોધો.

  • A
    $\frac{1}{2}$
  • B
    $-\frac{1}{2}$
  • C
    $1$
  • D
    $-1$

Explore More

Similar Questions

ધારો કે $n$ એ એક ધન પૂર્ણાંક છે જેથી $\sin \frac{\pi }{2^n} + \cos \frac{\pi }{2^n} = \frac{\sqrt{n}}{2}$ થાય. તો

Difficult
View Solution

નીચેના પદનું મૂલ્ય $3(\sin^{4} \theta + \cos^{4} \theta) + 2(\sin^{6} \theta + \cos^{6} \theta) + 12\sin^{2} \theta \cos^{2} \theta$ શોધો.

$\frac{2\sin \theta \tan \theta (1 - \tan \theta ) + 2\sin \theta \sec^2 \theta}{(1 + \tan \theta )^2} = $

$\cos^2 \left( \frac{\pi}{4} - \beta \right) - \sin^2 \left( \alpha - \frac{\pi}{4} \right) = $

જો $A + B + C = \frac{3\pi}{2}$ હોય,તો $\cos 2A + \cos 2B + \cos 2C = $

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