4+3i分之2-i等于多少

2个回答

分子分母同时乘以4-3i,结果为5分之1-2i
[(2-i)(4-3i)] / [(4+3i)(4-3i)]
=(8-4i-6i-3)/(16+9)
=(5-10i)/25
=（1-2i） /5