Question

Si:
x+ 1/x =2
Hallar: E= x²+ 1/x²

Answer 1

Respuesta:

x + 1 / x = 2

x * x = 2 * 1

x ^ 2 = 2

f ( x ) x ^ 2 = 2x

2x = 2

x = 2 / 2

x = 1

1 + 1 / 1 = 2

2 = 2

E= x ^ 2 + 1 / x ^ 2

x ^ 2 * x ^2 = E/ 1

x ^ 4 = E

f ( x ) x ^ 4 = 4x ^ 3

f ( x') 4x ^3 = 12x ^ 2

f ( x'') 12x ^ 2 = 24x

24x = E

x = 1 / 24

x = 0.04166

24 * 0.04166 =1

1 = 1

Explicación paso a paso: