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Консультация № 200917
Обсуждение
23.05.2021, 13:49
общий
23.05.2021, 13:50
это ответ
Здравствуйте, mfti!
Рассмотрим задание б. Его геометрический смысл состоит в определении минимального расстояния от начала координат
до точек, которые находятся вне или на границе круга с центром в точке 
с радиусом 
Уравнение границы этого круга -- окружности -- суть
Из рисунка в прикреплённом файле видно, что искомая точка
находится на пересечении указанной окружности и прямой, соединяющей начало координат и центр окружности. Уравнение этой прямой суть
Решая систему уравнений (1), (2), получим
Из рисунка видно, что это число является абсциссой точки
поэтому вычислять второй корень уравнения не нужно. Ордината этой точки равна 
что подтверждается рисунком.
Следовательно, искомое число -- это
Рассмотрим задание б. Его геометрический смысл состоит в определении минимального расстояния от начала координат
до точек, которые находятся вне или на границе круга с центром в точке с радиусом Уравнение границы этого круга -- окружности -- сутьИз рисунка в прикреплённом файле видно, что искомая точка
находится на пересечении указанной окружности и прямой, соединяющей начало координат и центр окружности. Уравнение этой прямой сутьРешая систему уравнений (1), (2), получим
Из рисунка видно, что это число является абсциссой точки
поэтому вычислять второй корень уравнения не нужно. Ордината этой точки равна что подтверждается рисунком.Следовательно, искомое число -- это
Прикрепленные файлы:
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Об авторе:
Facta loquuntur.
Facta loquuntur.
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