数学题求步骤谢谢谢速度(3+4i)+(2-5i)(4-3i)-(3+2i)(2+i)/(5-3i)(2+3i)÷(1+i)求步骤...谢谢了

Question

数学题 求步骤 谢谢谢 速度
(3+4i)+(2-5i)
(4-3i)-(3+2i)
(2+i)/(5-3i)
(2+3i)÷(1+i)
求步骤 ...谢谢了

Answer 1

.(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