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Heeeeelllp pleeeaaase ❤️

Heeeeelllp pleeeaaase ❤️-example-1

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sec \: x \: = - 2 \\ (1)/(cos \: x) = - 2 \\ cos \: x \: = - (1)/(2) \\ x \: = \: (2\pi)/(3) \: or \: (4\pi)/(3)

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