Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesTrigonometrical ratios of multiple and sub-multiple angles
Easy$\frac{1-\tan^2 15^{\circ}}{1+\tan^2 15^{\circ}} = ?$
- A$1$
- B$\sqrt{3}$
- C$\frac{\sqrt{3}}{2}$
- D$2$
Explore More
Similar Questions
$\cos^3 \frac{\pi}{8} \cos \frac{3\pi}{8} + \sin^3 \frac{\pi}{8} \sin \frac{3\pi}{8} = $
$\frac{\sin 3\theta - \cos 3\theta}{\sin \theta + \cos \theta} + 1 = $
Medium
View Solution$\frac{1 + \sin A - \cos A}{1 + \sin A + \cos A} = $
Medium
View SolutionIf $\tan x + \tan \left(x + \frac{\pi}{3}\right) + \tan \left(x + \frac{2\pi}{3}\right) = 3$,then $\tan 3x$ is equal to
$\cos 20^\circ \cos 40^\circ \cos 80^\circ = $
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo