1. Найдите координаты центра и радиус окружности, заданной уравнением: а) x²+y²=4; б) (x-2)²+(y+4)²=9
2. На рисунке изображены окружности с центрами в точках A и B. Напишите их уравнения.
3. Какая из точек C(0 ; 5) и D(2 ; 3) лежит на окружности, заданной уравнением (x+2)²+(y-6)²=25 ?
4. Найдите радиус окружности с центром в точке (2 ; 5), касающейся оси O x.

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03-12-2022
Mathematics

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1. Найдите координаты центра и радиус окружности, заданной уравнением: а) x²+y²=4; б) (x-2)²+(y+4)²=9
2. На рисунке изображены окружности с центрами в точках A и B. Напишите их уравнения.
3. Какая из точек C(0 ; 5) и D(2 ; 3) лежит на окружности, заданной уравнением (x+2)²+(y-6)²=25 ?
4. Найдите радиус окружности с центром в точке (2 ; 5), касающейся оси O x.

1 Найдите Координаты Центра И Радиус Окружности Заданной Уравнением А Xy4 Б X2y49 2 На Рисунке Изображены Окружности С Центрами В Точках A И B Напишите Их Уравн class=

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