Images ВАРИАНТ 1.2 3

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Вариант 1.2 3. Arccos 1. Arccos (-1/2)+arcsin(-1/2). Arcsin 1 Arccos 1 arctg 1 arctg 1. Арккосинус 1/2.
Arccos 1. Arccos (-1/2)+arcsin(-1/2). Arcsin 1 Arccos 1 arctg 1 arctg 1. Арккосинус 1/2.

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