Question

efetue as operações indicadas

a) (3-5i)+(-1+7i)+6=


b) 2. (3-i) + 4. (-1+2i)=

d) (3-2i)^2=
​

Answer 1

a) (8+2i)

b) (6-2i) + (-4+8i) --> (2+6i)

c) (3-2i)(3-2i) --> 9 -6i -6i +4i^2 --> 9 -12i -4 --> (5-12i)

OBS: i^2 = -1