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циклоидальные кривые

Тест, на который неоюходимо ответить

ЧТо такое эпициклоида траектории точек окружности, катящейся по внешней стороне другой окружности
Если производящая окружность катится по неподвижной окружности , с внутренней стороны , то это гипоциклоида
Касательная к эпициклоиде проходит через «наивысшую» , а нормаль через «наинизшую» точку производящего круга
Нормаль к любой гипоциклоиде в любой ее точке проходит через точку соприкосновения подвижного и неподвижного кругов;
Created by: Татьяна