જો $\theta \in \left[-\frac{\pi}{2}, \frac{\pi}{2}\right]$ માટે $2 \cos \theta + \sin \theta = 1$ અને $7 \cos \theta + 6 \sin \theta = k$ હોય,તો $k$ ની શક્ય કિંમતો કઈ છે?

  • A
    $8, -2$
  • B
    $6, 2$
  • C
    $12, 4$
  • D
    $7, 6$

Explore More

Similar Questions

$\sin 12^\circ \sin 24^\circ \sin 48^\circ \sin 84^\circ = $

જો $\sin \theta + \cos \theta = m$ અને $\sec \theta + \text{cosec} \theta = n$ હોય,તો $n(m + 1)(m - 1) = $

ધારો કે $S = \{x \in \left(-\frac{\pi}{2}, \frac{\pi}{2}\right) : 9^{1-\tan^2 x} + 9^{\tan^2 x} = 10\}$ અને $\beta = \sum_{x \in S} \tan^2\left(\frac{x}{3}\right)$,તો $\frac{1}{6}(\beta - 14)^2$ ની કિંમત શોધો.

જો $\sum_{r=1}^{50} \tan ^{-1} \frac{1}{2 r^2}=p$ હોય,તો $\tan p$ ની કિંમત શોધો.

જો $\sin x + \sin^2 x = 1$ હોય,તો $\cos^8 x + 2\cos^6 x + \cos^4 x = $

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