Răspuns:
a. =4+3i+6+7i= 10+10i=10(1+i)
c. =5+3i-5-3i=0
d. =5+3i-5+3i=6i
e. =4/3+1/5i+4/6-6/5i= 8+4/6-5/5i=12/6-i=2-i
f. =0,3-4,5i+1,7+1,5i=2-3i
sper ca e ok.
