Odpowiedzi

2009-04-07T14:02:05+02:00
A≠b i a+b=2c
a=2c-b
(a/a-c) + (b/b-c) = 2
L=(a/a-c) + (b/b-c)=(2c-b)/(2c-b-c) + (b/b-c)=(2c-b)/(c-b)+(b/b-c)=
=(2c-b)/(c-b)-(b/c-b)=(2c - b - b)/(c-b)=(2c-2b)/(c-b)=2(c-b)/(c-b)=
=2=P