Multiple Choice
Find the period P, amplitude A, and phase shift S, and graph at least two periods of the equation. y = 3 cos (3x + 60°)
A) P = 120°, A = 2, S = 20°
B) P = 180°, A = 3, S = -30°
C) P = 120°, A = 2, S = 20°
D) P = 180°, A = 3, S = 30°
E) P = 120°, A = 2, S = 20°
Correct Answer:

Verified
Correct Answer:
Verified
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