Whakaoti mō z
z=-1+i
Tautapa z
z≔-1+i
Tohaina
Kua tāruatia ki te papatopenga
z=\frac{1+7i}{3-4i}
Tātaihia te 2-i mā te pū o 2, kia riro ko 3-4i.
z=\frac{\left(1+7i\right)\left(3+4i\right)}{\left(3-4i\right)\left(3+4i\right)}
Me whakarea te taurunga me te tauraro o \frac{1+7i}{3-4i} ki te haumi hiato o te tauraro, 3+4i.
z=\frac{-25+25i}{25}
Mahia ngā whakarea i roto o \frac{\left(1+7i\right)\left(3+4i\right)}{\left(3-4i\right)\left(3+4i\right)}.
z=-1+i
Whakawehea te -25+25i ki te 25, kia riro ko -1+i.
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