Question

复数1加i分之2加i减2分之1的虚部为

Answer 1

本题题意不清,分几种情况

Case 1：

Z = 1 + 2/i + i - 1/2 = 1/2 - 2i + i = 1/2 - i,Re(Z) = -1

Case 2：

Z = 1 + (2+i)/i - 1/2 = 1/2 - 2i + 1 = 3/2 - i,Re(Z) = -2

Case 1：

Z = 1 + (2+i-1/2)/i = 1 + (3/2+i)/i = 2 - 3i/2,Re(Z) = -3/2