જો $\cos \theta = \frac{3}{5}$ અને $\cos \phi = \frac{4}{5}$ હોય,જ્યાં $\theta$ અને $\phi$ ધન લઘુકોણ છે,તો $\cos \frac{\theta - \phi}{2} = $

  • A
    $\frac{7}{\sqrt{2}}$
  • B
    $\frac{7}{5\sqrt{2}}$
  • C
    $\frac{7}{\sqrt{5}}$
  • D
    $\frac{7}{2\sqrt{5}}$

Explore More

Similar Questions

$5 \cos \theta + 3 \cos \left( \theta + \frac{\pi}{3} \right) - 1$ ની મહત્તમ કિંમત શોધો.

$\sqrt{\frac{1+\cos \theta}{1-\cos \theta}}+\sqrt{\frac{1-\cos \theta}{1+\cos \theta}}=$

$\csc \frac{\pi}{18} - \sqrt{3} \sec \frac{\pi}{18}$ ની કિંમત એ એક

જો $A + B + C = \pi$ $(A, B, C > 0)$ અને ખૂણો $C$ ગુરુકોણ હોય,તો:

જો $\frac{5\pi}{2} < x < 3\pi$ હોય,તો પદાવલિ $\frac{\sqrt{1 - \sin x} + \sqrt{1 + \sin x}}{\sqrt{1 - \sin x} - \sqrt{1 + \sin x}}$ ની કિંમત શોધો.

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