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(3+2i)/(2-3i)-(3-2i)/(2+3i)化简,0;2;-2i;2i哪个对?

题目详情
(3+2i)/(2-3i)-(3-2i)/(2+3i)化简,0;2;-2i;2i哪个对?
▼优质解答
答案和解析
(3+2i)/(2-3i)-(3-2i)/(2+3i)=[(3+2i)*(2+3i)]/[(2-3i)*(2+3i)]-[(3-2i)*(2-3i)]/[(2+3i)*(2-3i)]
=(6+9i+4i+2i*3i)/(2*2-3i*3i)-(6-9i-4i+2i*3i)/(2*2-3i*3i)=13i/13+13i/13=2i