Odpowiedzi

2009-12-15T17:58:31+01:00
(2 i 1/3) do kwadratu + (4 i 1/2) do kwadratu= x do kwadratu
49/9 + 81/4 = x do kwadratu
x do kwadratu = 25,65
x = pierwiastek z 25,65
1 5 1
2009-12-15T18:07:50+01:00
A=2 ⅓dm
b=4 ½dm
c=?
a²+b²=c²
(2 ⅓dm)²+(4 ½dm)²=c²
c²=5⁴/₉+20¼
c²=25⅚
c=√25⅚
1 5 1