Part A: What is the period of f(x) and g(x)? Select your answer from the choices a, b, c, or d below.

a. The period of f(x) is 4 radians, and the period of g(x) is 2 radians.

b. The period of f(x) is 2 radians, and the period of g(x) is 4T radians.

c. The period of f(x) is π radians, and the period of g(x) is 2π radians.

d. The period of f(x) is 2 radians, and the period of g(x) is ʼn radians.

Part B: What is the relationship between the frequencies of f(x) and g(x)?

Part C: What effect does doubling the angle have on the period of the graph of the cosine function? Explain.