Odpowiedzi

2009-11-19T21:09:42+01:00
A)⅘-(0,8-1,2×⅚)÷(-½)³=8/10 - (8/10 - 12/10×5/6)÷(-1/8) =
8/10 - (8/10 - 1) × (-8) = 8/10 - (-2/10)× (-8) = 8/10 - 8/5= - 8/10 = -⅘

b)[2²-√2¼×(-1⅓)²]÷(-⅓)³= (4 - 3/2 × 16/9)÷(-1/27)=
(4- 8/3) × (-27) = 4/3 × (-27)= -36
2009-11-19T21:16:27+01:00
⅘-(0,8-1,2×⅚)÷(-½)³=2,4


[2²-√2¼×(-1⅓)²]÷(-⅓)³=-26