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What are the phase shift and period for the function y=2cos1/2(0+30°)-4

Phase shift 30° left, period 720°
Phase shift 30° right, period 330°
Phase shift 30° right, period 90°
Phase shift 30° left, period 180°


What Are The Phase Shift And Period For The Function Y2cos120304 Phase Shift 30 Left Period 720 Phase Shift 30 Right Period 330 Phase Shift 30 Right Period 90 P class=