Odpowiedzi

2009-11-12T22:09:33+01:00
1/(√2-1)=(√2+1)/(√2-1)(√2+1)=(√2+1)/(2-1)=√2+1
2009-11-12T22:10:33+01:00
1/(√2-1)=1 razy (√2+1)/[(√2-1)(√2+1)]=(√2+1)/(2-1)=(√2+1)