Express cos^2 x in terms of cos2x. Hence, express f (x) = 6cos^2 x - 4sin 2x in the form R cos (2x + Y degrees) + p where R, y and p are constants. Find the maxium and minimum values of f (x) and sketch its graph in the domain - 180 < = x < = 360
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Home » Mathematics » Express cos^2 x in terms of cos2x. Hence, express f (x) = 6cos^2 x - 4sin 2x in the form R cos (2x + Y degrees) + p where R, y and p are constants. Find the maxium and minimum values of f (x) and sketch its graph in the domain - 180 < = x < = 360