Let cos(2x) – cos(x) = 0, where 0° ≤ x ≤ 180°. What are the possible values for x?
60° only
1...
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Mathematics, 23.10.2020 20:10 yoongnzl
Let cos(2x) – cos(x) = 0, where 0° ≤ x ≤ 180°. What are the possible values for x?
60° only
120° only
0° or 120°
60° or 180°
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Answers: 3
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