Question

em cada caso efetue as operaçoes indicadas : a) (3 + 2i) + (-4 + 5i) - (+5 - 3i) b) (4 + 3i) - 2(2 + 2i) c) 1/4 - 5i (3/2 - 2/3i) - (5/6 + 3/4i)

Answer 1

a)
(3+2i)+(-4+5i)-(5-3i)
3+2i-4+5i-5+3i
3-4-5+2i+5i+3i
-6+10i
b)
(4+3i)-2 (2+2i)
4+3i-4-4i
-i
c)
1/4-5i (3/2-2/3i)-(5/6+3/4i)
1/4-15/2i+10/3i^2-5/6-3/4i
1/2-15/2i-10/3-5/6-3/4i
-47/12-33/4i