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posted by rio .
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

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Damon
2 x = pi +/ pi/3 radians
you take it from there
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