Question

considere as numeros complexos z=4+5i e w=-2+6i qual e o numero complexo que representa a diferença z-w

a)6-i
b)6-11i
c)2+11i
d)2-i
e)-6+i

Answer 1

z-w = (4+5i) - (-2+6i)
z-w = 6 - i