Odpowiedzi

2009-12-10T15:10:18+01:00
Iloczyn
a x b=(3 -2√2)(3 + 2√2)=3²-(2√2)²=9-4 x 2=9-8=1

iloraz
a:b=⅓3-2√2 / 3+2√2=(3-2√2)(3-2√2)/(3+2√2)(3-2√2)=
=3²-6√2-6√2+8 / 3²-(2√2)²=9-12√2+8 / 9-8=
=17-12√2
1 5 1