Предмет: Алгебра, автор: nucha2010

на координатной прямой отмечены числа а,b и с. значение какого из следующих выражений отрицательно? 1)-а 2)а+с 3)в-с 4)с-а

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Автор ответа: Sasha121rus

0

вроде вот это 3) если не ошибаюсь :)

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