Odpowiedzi

2010-02-13T15:26:27+01:00
A). ½√72-¼√32+⅕√50=
= 3√2-1√2+1√2=
=3√2

b). 0,2³√250-0,25³√128+⅓³√54=
=1-2√2+√6
3 3 3
2010-02-13T15:58:40+01:00
A).
1/2√72-1/4√32+1/5√50=
1/2 √36*2 - 1/4√16*2 + 1/5√25*2
1/2*6√2 - 1/4*4√2 + 1/5*5√2
(teraz skaracamy)
3√2 - 2√ + √2 = 3√2

b)0,2³√250-0,25³√128+⅓³√54=
=1-2√2+√6
4 4 4