Oblicz. a) (-1 i 3/10 -2 i 4/5) : (1 i 3/4 - 3 i 5/6)=
b) (3 i 1/2 i 5 i 3/4) * (i1 i 3/5 + 23/30) *(1 i 1/6-3 i 13/15)=
c) (1 i 2/3 - 2 i 1/4) * (3 i 1/2 - 2 i 3/10) : ( -1 i 3/4 - 1 i 1/20)=
d) (-1 i 1/2 - 2 i 2/3) : (1 i 5/6 - 2 i 17/18) : (-1 i 11/12 - 1 i 5/6)=
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a) (-1 i 3/10 - 2 i 4/5) : ( 1 i 3/4 i 5/6)= ( 13/10 - 28/10) : ( 21/12 - 46/12) = (-15/10) : (-25/12) = (-15/10) * (-12/25) = 18/25 (tutaj nie wiem czy można jakoś skrócić)
c) (1 i 2/3 - 2 i 1/4) * (3 i 1/2 - 2 i 3/10) : (-1 i 3/4 - 1 i 1/20)= ( -7/12) * ( 12/10) : (-56/20)= (-7/10) : (-56/20) = (14/56)= 1/4
d) (-1 i 1/2 - 2 i 2/3) : ( 1 i 5/6 - 2 i 17/18) : ( -1 i 11/12 - 1 i 5/6)= ( -25/6) : (-20/18) : ( -45/12)= (15/4) : (-20/18) = (-27/8) = -3 i 3/8
mam nadzieję że jest dobrze ;)