यदि $\tan \theta + \sec \theta = e^x$ है,तो $\cos \theta$ का मान क्या होगा?

  • A
    $\frac{e^x + e^{-x}}{2}$
  • B
    $\frac{2}{e^x + e^{-x}}$
  • C
    $\frac{e^x - e^{-x}}{2}$
  • D
    $\frac{e^x - e^{-x}}{e^x + e^{-x}}$

Explore More

Similar Questions

यदि $\cos (A + B) = \alpha \cos A \cos B + \beta \sin A \sin B$ है,तो $(\alpha, \beta) =$

यदि $\sin \alpha = \frac{2pq}{p^2 + q^2}$ है,तो $\sec \alpha - \tan \alpha = $

यदि $x$ वास्तविक है और $x+\frac{1}{x}=2 \cos \theta$ है,तो $\cos \theta=$

$\cos \frac{\pi }{5} \cos \frac{2\pi }{5} \cos \frac{4\pi }{5} \cos \frac{8\pi }{5} = $

यदि $\sin \theta + \sin 2\theta + \sin 3\theta = \sin \alpha$ और $\cos \theta + \cos 2\theta + \cos 3\theta = \cos \alpha$ है,तो $\theta$ 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