Math Doubts

Double angle identities Questions with Solutions

The list of questions on double angle identities in trigonometry for your practice, and worksheet on double angle trigonometric identities, to know how to use them as formulas in trigonometry problems. The double angle identities examples with solutions to learn how to expand the trigonometric functions having double angles and also learn how to simplify the expressions as the trigonometric functions with double angles.

Evaluate $\dfrac{1}{\sin{10^\circ}}-\dfrac{\sqrt{3}}{\cos{10^\circ}}$

Evaluate $\dfrac{-\sin{x}+\sin{2x}}{1-\cos{x}+\cos{2x}}$

Evaluate $\dfrac{\cos{x}+\sin{x}}{\cos{x}-\sin{x}}$ $-$ $\dfrac{\cos{x}-\sin{x}}{\cos{x}+\sin{x}}$

Math Questions

The math problems with solutions to learn how to solve a problem.

Learn solutions

Math Worksheets

The math worksheets with answers for your practice with examples.

Practice now

Math Videos

The math videos tutorials with visual graphics to learn every concept.

Watch now

Subscribe us

Get the latest math updates from the Math Doubts by subscribing us.

Learn more

Math Doubts

A free math education service for students to learn every math concept easily, for teachers to teach mathematics understandably and for mathematicians to share their maths researching projects.

Copyright © 2012 - 2023 Math Doubts, All Rights Reserved