cos2x=____. Check all that apply. A. 1-2sin^2 x. B. 2sin^2 x-1. C. sin^2 x-cos^2 x. D. cos^2 x-sin^2 x
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Look at your picture
notice the coordinates for the center of the circle, the x,y or h,k values
notice how long the radius is
thus
notice the coordinates for the center of the circle, the x,y or h,k values
notice how long the radius is
thus