Odpowiedzi

2013-07-11T15:08:46+02:00

x = 1 - √2 x

x + 2√x = 1

x(1+√2) = 1   /(1+√2)

x = 1/(1+√2) * (1-√2)/(1-√2) = (1-√2)/(1-2) = -(1-√2) = √2 - 1