Question: Let (x) = 1 - 3 cos (2x). (a) What is the domain o f ? (b) What is the range o f ? (c)

Let ∫(x) = 1 - 3 cos (2x).
(a) What is the domain o f ∫?

(b) What is the range o f ∫?
(c) What is the period o f ∫?
(d) Is ∫ an even function, odd function, or neither?
(e) Find all the zeros of ∫ in π/2 ≤ x ≤ π.

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