Do iloczynu liczb 1,2 i-2- dodaj iloczyn liczb 23-ܪ 91-16

1,2 x (-2i1/3) + 6/7 x (-1i1/6) = 6/5 x (-7/3) + 6/7 x (-7/6) = -14/5-1= -2i4/5 -1 = -3i4/5