Posted by **Jackie** on Sunday, April 17, 2011 at 12:56pm.

Multiply:

5(cos Pi/3 + i sin Pi/3)times 2 (cos Pi/4 + i sin Pi/4) and leave the answer in trigonometric notation.

## Answer this Question

## Related Questions

- 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^...
- trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...
- tigonometry - expres the following as sums and differences of sines or cosines ...
- algebra - Can someone please help me do this problem? That would be great! ...
- Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
- Math - Calculus - The identity below is significant because it relates 3 ...
- Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...
- trig - The expression 4 sin x cos x is equivalent to which of the following? (...
- Calculus 12th grade (double check my work please) - 1.)Find dy/dx when y= Ln (...