oblicz kwadrat liczby -2 i 1/4. oblicz: (-1 i 1/2) razy 3 i 2/3 = (-7 i 1/3) : (-1 i 2/9) = 4/5 + (-1 i 1/5) : 2 i 2/5 + 3/8 razy (-1 i 3/5) =

(-2)²=4 (¼)²=1/16 -1 1/2 * 3 2/3 = -3/2*11/3=-11/2 = -5 1/2 -7 1/3 : -1 2/9 =-22/3 : (-11/9) = 22/3 * 9/11 = 6 4/5 + -1 1/5 : 2 2/5 + 3/8 * -1 3/5 = 4/5 + (-1 1/5) : 12/5 + 3/8 * (-8/5)= 4/5 + (-6/5)*5/12 - 3/5 = 4/5 - 1/2 + 3/5 = 8/10 - 5/10 - 6 /10= -3/10