यदि $\alpha$,$25\cos^2\theta + 5\cos\theta - 12 = 0$ का एक मूल है और $\pi/2 < \alpha < \pi$ है,तो $\sin 2\alpha$ का मान ज्ञात कीजिए।

  • A
    $24/25$
  • B
    $-24/25$
  • C
    $13/18$
  • D
    $-13/18$

Explore More

Similar Questions

यदि $\tan A = \frac{1}{2}$ और $\tan B = \frac{1}{3}$ है,तो $\cos 2A = $

यदि $f(x) = \cos^2 x + \sec^2 x$ है,तो इसका मान सदैव क्या होगा?

मान लीजिए $f_k(x) = \frac{1}{k}(\sin^k x + \cos^k x)$ जहाँ $x \in R$ और $k \ge 1$ है। तो $f_4(x) - f_6(x)$ का मान ज्ञात कीजिए।

Difficult
View Solution

यदि $\cos ^{2} x+\cos ^{4} x=1$ है,तो $\tan ^{2} x+\tan ^{4} x=?$

Difficult
View Solution

$\sin^6 \theta + \cos^6 \theta + 3 \sin^2 \theta \cos^2 \theta = $

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