Odpowiedzi

2009-04-07T22:00:11+02:00
2009-04-07T22:01:23+02:00
Α=(-1⅓)²÷⁸₉-(2,5-1⅓)×1¹₅ = (-4/3)²÷8/9 - ([25/10] * [4/3]) * 6/5= 16/9 * 9/8 - 10/3 * 6/5 = 2 - 4 = -2
liczba odwrotna: - 1/2
25% z a = 25/100 * (-2) = (-25/50) = (- 1/2)