Math Doubts

Triple angle identities Trigonometry Problems and solutions

The list of trigonometry questions on triple angle identities for practice with understandable solutions to learn how to use the triple angle trigonometric identities as formulas in math problems. The triple angle trigonometric problems were solved here in different methods to enhance problem-solving skill in you. So, learn each method to get solution for any type of trigonometric question with triple angle identities.

$(1).\,\,$ Find $\dfrac{\sin{3x}}{\sin{x}}$ $-$ $\dfrac{\cos{3x}}{\cos{x}}$

$(2).\,\,$ Evaluate $\dfrac{\cos{x}-\cos{3x}}{\cos{x}}$ $+$ $\dfrac{\sin{x}+\sin{3x}}{\sin{x}}$

$(3).\,\,$ Calculate $\dfrac{\cos^3{x}-\cos{3x}}{\cos{x}}$ $+$ $\dfrac{\sin^3{x}+\sin{3x}}{\sin{x}}$

$(4).\,\,$ Find $(\sin{3x}+\sin{x})\sin{x}$ $+$ $(\cos{3x}-\cos{x})\cos{x}$

Math Doubts

A best free mathematics education website for students, teachers and researchers.

Maths Topics

Learn each topic of the mathematics easily with understandable proofs and visual animation graphics.

Maths Problems

Learn how to solve the math problems in different methods with understandable steps and worksheets on every concept for your practice.

Learn solutions

Subscribe us

You can get the latest updates from us by following to our official page of Math Doubts in one of your favourite social media sites.

Copyright © 2012 - 2022 Math Doubts, All Rights Reserved