Question

determine x e y, que x/y = 7:15 e x² + y² = 53, determine seus valores.

Answer 1

y = 15x/7

x² +(15x/7)² = 53

49x² +225x² = 53 * 49

x² = 2597/(225 +49)

x = √(2597/274) * √(274/274)

x = √711578/274

x = 7√14522/274

y = (7√14522) * 15/(274) * 7

y = 15√14522/274