Trigonometric Functions of Compound Angles

1 / 42

# Trigonometric Functions of Compound Angles - PowerPoint PPT Presentation

Trigonometric Functions of Compound Angles. Compound Angle Formulae. Compound Angle Formulae. (A) Sum and Difference Formulae. If we replace B by (-B) in formula of sin(A – B), we have. If we replace A by ( /2 - A ) in the formula of sin(A - B), we have.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'Trigonometric Functions of Compound Angles' - andrew

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

### Compound Angle Formulae

(A) Sum and Difference Formulae

P.235

P.244

### The Subsidiary Angles

The expression acos + bsin

may always be converted into the forms rsin( ±α) or rcos( ±β) where r is a positive constant.

α and β are called the subsidiary angles.

P.251

P.257

### Elimination of Angles

If we have two or more equations, each containing a certain variable, the process of finding an equation from which that variable isexcluded is called elimination.

P.267