If $5\cos^2 \theta + 7\sin^2 \theta - 6 = 0$,then the general value of $\theta$ is

  • A
    $2n\pi \pm \frac{\pi}{4}$
  • B
    $n\pi \pm \frac{\pi}{4}$
  • C
    $n\pi + (-1)^n \frac{\pi}{4}$
  • D
    None of these

Explore More

Similar Questions

The solution of the equation $(\sin x + \cos x)^{1 + \sin 2x} = 2$,where $-\pi \leq x \leq \pi$,is

The number of distinct solutions of $\sec \theta + \tan \theta = \sqrt{3}$ for $0 \leqslant \theta \leqslant 2\pi$ is:

If $\cos 7\theta = \cos \theta - \sin 4\theta$,then the general value of $\theta$ is

The number of solution$(s)$ of the equation $\sin 2\theta + \cos 2\theta = -\frac{1}{2}$ for $\theta \in \left( 0, \frac{\pi}{2} \right)$ is:

The most general value of $\theta$ which satisfies both the equations $\tan \theta = -1$ and $\cos \theta = \frac{1}{\sqrt{2}}$ is

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