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Mathematics, 12.11.2019 11:31 dannmend123

Which of the following is not equal to cos⁡(520°)?
cos⁡(160°)
cos⁡(200°)
cos⁡(20°)
-cos⁡(-20°)

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Which of the following is not equal to cos⁡(520°)?
cos⁡(160°)
cos⁡(200°)
cos⁡(...

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