Question

x + y = 4
1/x + 1/y = 1​

Answer 1

Tarefa

x + y = 4  

1/x + 1/y = 1​

Explicação passo-a-passo:

x + y = 4

4/xy = 1

xy = 4

z² - Sz + P = 0

z² - 4z + 4 = 0

(z - 2)²  = 0

z = 2

x = 2. y = 2

2 + 2 = 4

1/2 + 1/2 = 1