Posted by **rio** on Friday, November 26, 2010 at 4:37pm.

Sketch the graphs of y=cos 2x and y= -0.5 over the domain -pi<x<pi. use an algebraic method to determine the values of x where these two graphs intersect. use exact value.

Please help me work this problem out! I sketched the graph, just not sure how to set up the equation. Thankyou

## Answer This Question

## Related Questions

- math - use exact values of the sin,cos and tan of (pi/3) and (pi/6)(which I ...
- math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...
- math - use exact values of the sin,cos and tan of (pi/3) and (pi/6)(which I have...
- Math- Trig - 1. Determine the exact value of cos^-1 (pi/2). Give number and ...
- math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...
- Precalc Trig - here's the question: solve for cos(2theta)=1 if you graph r= cos(...
- math - For questions 4–5, use the following two ways to display the test scores ...
- MATH Please Help Please - Algebra 2 There is a graphs of the sequence f(n)=2n-3 ...
- calculus - Consider the graphs of y = 3x + c and y^2 = 6x, where c is a real ...
- trig - 2sin(x)cos(x)+cos(x)=0 I'm looking for exact value solutions in [0, 3&#...

More Related Questions