Question

For a particular angle Θ, the cosine function f(x) = a cos b(Θ) has the following values within one cycle of the function:

f(0) = 4; f(pi/4) = 0; f(pi/2) = -4; f(3pi/4) = 0; f(pi) =4
What is the rule for the cosine function? (1 point)
Responses
y = 2 cos 4θ
y = 4 cos 2θ
y = –4 cos 3θ
y = 1/4 cos 2θ

Answer 1

[AI-generated answer — Bot GPT 3.5]

y = 4 cos 2θ