Posted by **Nicole** on Sunday, March 6, 2011 at 9:41pm.

give and exact value for cos(2pi/3)

## Answer this Question

## Related Questions

- Trig - If cosx = 10/19 an pi < x < 2pi, find the exact value of cos x/2 ...
- trig - determine the exact value for sin[cos^-1(4/5)] if XE [0,2pi]
- trig - give exact value of cos 75 degrees. give exact value sin 15 degrees. give...
- Math- Trig - 1. Determine the exact value of cos^-1 (pi/2). Give number and ...
- Trig hep, please? Thank you! - 1. Find the exact value of sin(195(degrees)) 2. ...
- trig - Find the exact solutions of the equation in the interval [0,2pi). sin(x/2...
- Trigonometry - a. Find the exact value of sin (theta - pi/6) b. Find the exact ...
- Precalc with Trig - What value(s) of x from 0 to 2pi solve the following ...
- Trigonometry - 4. Find the exact value for sin(x+y) if sinx=-4/5 and cos y = 15/...
- Math Trig Please Help!!! - Find exact values for all the solutions to the ...

More Related Questions