यदि $\cos A = \frac{3}{4}$ है,तो $32\sin \left( \frac{A}{2} \right)\sin \left( \frac{5A}{2} \right) = $

  • A
    $7$
  • B
    $8$
  • C
    $11$
  • D
    इनमें से कोई नहीं

Explore More

Similar Questions

व्यंजक $\frac{\tan^2 20^\circ - \sin^2 20^\circ}{\tan^2 20^\circ \cdot \sin^2 20^\circ}$ का सरलीकरण क्या होगा?

मान लीजिए $E = \left( {1 - \frac{{\cos 61^\circ}}{{\cos 1^\circ}}} \right) \left( {1 - \frac{{\cos 62^\circ}}{{\cos 2^\circ}}} \right) \dots \left( {1 - \frac{{\cos 119^\circ}}{{\cos 59^\circ}}} \right)$,तो $E$ का मान ज्ञात कीजिए:

$2\cos^2 \theta - 2\sin^2 \theta = 1$,तो $\theta = \dots \dots ^\circ$

यदि $\frac{\sec \theta+\tan \theta}{\sec \theta-\tan \theta}=2 \frac{51}{79}$ है,तो $\sin \theta$ का मान ज्ञात कीजिए।

Difficult
View Solution

यदि $\cos \theta = \frac{x^{2}-y^{2}}{x^{2}+y^{2}}$ है,तो $\cot \theta$ का मान ज्ञात कीजिए (जहाँ $0^{\circ} \leq \theta \leq 90^{\circ}$)

Difficult
View Solution

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