Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesFundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles
EasyFind the angle in radians through which a pendulum swings if its length is $75 \, cm$ and the tip describes an arc of length $21 \, cm$.
- A$7/25 \, \text{radians}$
- B$25/7 \, \text{radians}$
- C$1/3 \, \text{radians}$
- D$3/10 \, \text{radians}$
Explore More
Similar Questions
$\frac{\sin \theta}{1-\cot \theta} + \frac{\cos \theta}{1-\tan \theta} = $
The value of $\cos (270^\circ + \theta )\cos (90^\circ - \theta ) - \sin (270^\circ - \theta )\cos \theta $ is
Easy
View SolutionSuppose $ABC$ is a triangle and $D, E$ are points on the sides $AB$ and $AC$ respectively. If $AD : AB = 3 : 5$ and $AE : AC = 2 : 3$,then the ratio of the areas of the triangles $ABC$ and $ADE$ lies in the interval.
The value of $\cos A - \sin A$ when $A = \frac{5\pi}{4}$ is
Easy
View SolutionIf $\tan \theta = 2$ and $\theta$ lies in the third quadrant,then the value of $\sec \theta$ is
Vedclass 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