Question

Calcule:
a) (6+5i)=(2-i)
b) (6-i)+(4+2i)-(5-3i)
c)(2/3 +i)-(1/2 -i_=(4-2i)

Answer 1

a) (6+5i)+(2-i) = 6+2+5i-i = 8+4i
b) (6-i)+(4+2i)-(5-3i) = 6-i+4+2i-5+3i = 6+4-5-i+2i+3i = 5+4i
c) 2i/3 + i - 1/2 - i + 4 - 2i = 2i+3i-6-3i+12-6i = -4i-6