Multiple ange Formulae
By admin • Mar 17th, 2008 • Category: UncategorizedFUNDAMENTALS OF TRIGONOMETRY (2)
MULTIPLE ANGLE FORMULAE
sin (A+B) = sin A cos B + sin B cos A
cos (A+B) = cos A cos B - sin A sin B
sin (A-B) = sin A cos B - sin B cos A
cos (A-B) = cos A […]
