Which one of the following is true for 0° ≤ θ ≤ 90°?

Which one of the following is true for 0° ≤ θ ≤ 90°?
1). cos θ > cos² θ
2). cos θ < cos² θ
3). cos θ ≥ cos² θ
4). cos θ ≤ cos² θ

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