Предмет: Геометрия, автор: matrix28278474

Уравнение окружности: x2+y2=1.
Уравнение прямой: x=a.

Найди значения a, с которыми...
(В ответе каждого пункта в первое и четвёртое окошки вводи необходимые знаки =, < , >; в третье окошко вводи необходимое слово и, или; во второе и пятое окошки вводи числовые значения a, соблюдая направление числовой оси слева направо.)

1. ...прямая имеет одну общую точку с окружностью
a
a
;

2. ...прямая имеет две общие точки с окружностью
a
a
;

3. ...прямая не имеет общих точек с окружностью
a
a
.

Ответы

Автор ответа: egorchik2t
2

При а=10 и а=-10 прямая имеет одну общую точку с окружностью

2. -10<a<10 прямая имеет две общие точки с окружностью

3. при а<-10 , a>10 прямая не имеет общих точек с окружностью

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