Tuesday

September 16, 2014

September 16, 2014

Posted by **Karth** on Tuesday, December 16, 2008 at 1:53am.

sin(u+v) = sin(u)cos(v) + sin(v)cos(u)

cos(u+v) = cos(u)cos(v) + sin(v)sin(u)

Thanks!

- Trigonometry -
**Damon**, Tuesday, December 16, 2008 at 3:10amhttp://www.youtube.com/watch?v=zw0waJCEc-w

http://www.youtube.com/watch?v=V3-xCPDzQ1Q

**Answer this Question**

**Related Questions**

tigonometry - expres the following as sums and differences of sines or cosines ...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...

algebra - Can someone please help me do this problem? That would be great! ...

trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...

Math - Calculus - The identity below is significant because it relates 3 ...

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...

pre-cal - Simplify the given expression........? (2sin2x)(cos6x) sin 2x and cos ...

Calculus 12th grade (double check my work please) - 1.)Find dy/dx when y= Ln (...

Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...