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The graph of which equation has an amplitude of 2 and 2. How many full cycles of the function y = in radians? a period of radians? a) y 2 cos x — sin2x 2cos2x -2cosx 4. Which graph represents the function f(x) = —stnx in the interval g? 3. The accompanying diagram shows a section of a sound wave as displayed on an oscilloscope. Which equation ................
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