Odpowiedź:
a = -3 + (- 1 i 1/3+ 2): (1 i 1/5) =
= - 2i4/9
b = 1 /5 - 0,3 x - 2 1/4 -3.25 =
= (-3/10)x -53/10
Szczegółowe wyjaśnienie:
a = -3 + (- 1 i 1/3+ 2): (1 i 1/5) =
= - 3 + (- 3/3 - 1/3 + 6/3):(6/5) =
= - 3 + (2/3)(5/6) = - 3 + 10/18 =
= - 3 + 5/9 = -27/9 + 5/9 = -22/9 = -18/9 - 4/9 = - 2i4/9
b = 1 /5 - 0,3 x - 2 1/4 -3.25 =
= 1/5 - 3x/10 - 8/4 - 1/4 - 325/100 =
= 20/100 - 30x/100 - 200/100 - 25/100 - 325/100 =
= (-3/10)x -530/100 = (-3/10)x -265/50 = (-3/10)x -53/10