.(3+4i)+(2-5i)=(3+2)+(4i-5i)=5-i
(4-3i)-(3+2i)=(4-3)-(3i+2i)=1-5i
(2+i)/(5-3i)=(2+i)(5+3i)/(25+9)=(10+6i+5i-3)/34=7/34+11/34i
(2+3i)÷(1+i)=(2+3i)(1-i)/(1+1)=(2-2i+3i+3)/2=5/2+i/2
.(3+4i)+(2-5i)=(3+2)+(4i-5i)=5-i
(4-3i)-(3+2i)=(4-3)-(3i+2i)=1-5i
(2+i)/(5-3i)=(2+i)(5+3i)/(25+9)=(10+6i+5i-3)/34=7/34+11/34i
(2+3i)÷(1+i)=(2+3i)(1-i)/(1+1)=(2-2i+3i+3)/2=5/2+i/2