Автор - Тоni

Решите систему. Срочно

Ответ

Автор - Beaver4000

Ответ:

(x,y)=(9,4)

Объяснение:

left { {{sqrt{x}-sqrt{y} =1 } atop {x-y=5}} right. \left { {{sqrt{5+y}-sqrt{y} =1 } atop {x=5+y}} right.\left { {{sqrt{5+y} =1+sqrt{y} } atop {x=5+y}} right.\ left { {{5+y =1+2sqrt{y}+y } atop {x=5+y}} right.\ left { {{4 =2sqrt{y} } atop {x=5+y}} right.\ left { {{2 =sqrt{y} } atop {x=5+y}} right.\ left { {{y=4 } atop {x=5+4}} right.\ left { {{y=4 } atop {x=9}} right.

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