Posted by **matt** on Saturday, April 17, 2010 at 5:45pm.

how do you use doubel-angle formulas to find sin, cos, and tan

## Answer This Question

## Related Questions

- Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
- MATH - 1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL ...
- Math- Trig - 1. Determine the exact value of cos^-1 (pi/2). Give number and ...
- Trig/Precalc - So I have two questions that have been puzzling me for quite some...
- trig 26 - simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v ...
- Precalculus - I am trying to submit this homework in but i guess i'm not doing ...
- trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...
- precalculus - For each of the following determine whether or not it is an ...
- trig help much appreciated! :)) - 1. Find the complete exact solution of sin x...
- Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...

More Related Questions