# How to solve trigonometric equations

Simple notes, easy ways to remember the difference between the three (sin, cos and tan)

AQA C2

HideShow resource information

- Created by: unknown
- Created on: 30-04-12 22:01

First 121 words of the document:

Solving trigonometric equations - C2

Sin - two rows:

Find X

Do 180 - X = X1

Now do ±360 on X and X1

Remember to divide by the coefficient of x or

Cos - two rows:

find X

Your second value is -X

Now do ±360 on X and -X

Remember to divide by the coefficient of x or

Tan - one row:

find X

Do ±180

Now do ±360 on X and X1

Remember to divide by the coefficient of x or

Remember:

X = principal value

Circle the answers you get that are within your range and remember to

divide if you need to.

## Comments

No comments have yet been made