अंतराल $[0, 2\pi]$ में $8 \cos^2 \theta + 14 \cos \theta + 5 = 0$ का हल समुच्चय क्या है?

  • A
    $\left\{\frac{\pi}{3}, \frac{2\pi}{3}\right\}$
  • B
    $\left\{\frac{\pi}{3}, \frac{4\pi}{3}\right\}$
  • C
    $\left\{\frac{2\pi}{3}, \frac{4\pi}{3}\right\}$
  • D
    $\left\{\frac{2\pi}{3}, \frac{5\pi}{3}\right\}$

Explore More

Similar Questions

$\sin^2 \theta \sec \theta + \sqrt{3} \tan \theta = 0$ का व्यापक हल है

$4 \sin^2(x) - 4 \sin(x) + 1 = 0$ का व्यापक हल है

$1+\cos^2 \theta = 3 \sin \theta \cos \theta \Rightarrow \theta = ?$

समीकरण $3 \cos x + 4 \sin x = 6$ के

$x \in [0, 4\pi]$ के लिए $\sin^{7} x + \cos^{7} x = 1$ के हलों की संख्या क्या है?

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