यदि $\tan 7 \theta \cdot \tan 3 \theta = 1$ है,तो $\theta$ का मान .......... है।

  • A
    $30$
  • B
    $18$
  • C
    $15$
  • D
    $9$

Explore More

Similar Questions

$\frac{\sec \theta-1}{\sec \theta+1} = \ldots$

$2 \sin ^{2} 30^{\circ} \cot 30^{\circ}-3 \cos ^{2} 60^{\circ} \sec ^{2} 30^{\circ} = \dots$

$(\sin \theta+\cos \theta)^{2}+(\sin \theta-\cos \theta)^{2} = \dots$

$\frac{1}{\sin ^{2} \theta}-1 = \ldots \ldots \ldots$

$\sin \theta \cdot \cos (90^\circ - \theta) = \ldots \ldots \ldots$

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