Предмет: Математика, автор: awog27

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Автор ответа: TanomiU
0

Ответ:

Пошаговое объяснение:

{2с - r = 0       →   r = 2c

{r = 8/c

2c = 8/c

2c² = 8

c² = 4

c =± 2

c₁ = 2 →  r₁ = 2*2 =4

c₂ = - 2 → r₂ = 2 * (-2) = - 4

Ответ: 1) r= -4, с = -2  2) r = 2, c = 4

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