Odpowiedzi

2010-04-07T14:01:38+02:00
Log₂(x+1)=-log₂(x-1)
log₂ (x+1)=log₂ 1/(x-1)

x+1 = 1/(x-1)
(x+1)(x-1) = 1
x²-1=1
x²-2=0
(x-√2)(x+√2)=0
x₁=√2
x₂=-√2