Odpowiedzi

2010-03-01T19:11:25+01:00
A) 1 i 4/144 * 4 4/25
b) - 1/2
2010-03-01T19:14:23+01:00
A) (2 ¼ - 1⅚)² * (2⅖)² =
(9/4 - 11/6)² * (12/5)²=
81/16 - 121/36 * 144/25=
162/36 -121/36 * 144/25=
41/36 * 144/25 =
50904/900 = 56 504/900
2010-03-01T19:15:14+01:00
(9/4-11/6)²*(-12/5)²=(27/12-22/12)²*144/25=(5/12)²*144/25=25/144*144/25=1
7/4*4/49(skracamy 4)=7/49=1/7