# Trigonometric Expression As Algebraic

• August 28th 2008, 02:55 AM
magentarita
Trigonometric Expression As Algebraic
Write the trigonometric expression as an algebraic expression having u and v.

sin[arcsin(u) - arccos(v)]
• August 28th 2008, 03:00 AM
Moo
Quote:

Originally Posted by magentarita
Write the trigonometric expression as an algebraic expression having u and v.

sin[arcsin(u) - arccos(v)]

Formula sin(a-b) that you should know

then $\sin(\arcsin(x))=\cos(\arccos(x))=x$

$\sin(\arccos(x))=\cos(\arcsin(x))=\sqrt{1-x^2}$
• August 28th 2008, 02:59 PM
magentarita
very good...
I thank you for your great help and tips.