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

For a particular angle O, the cosine function f(x) = a * cos b * (Theta) 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) y = 2cos 40 y = 4cos 2theta y = - 4cos 3theta y = 1/4 * cos 2theta

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