gaokao 2023 Q1

gaokao · China · national-B-science Complex Numbers Arithmetic Complex Division/Multiplication Simplification

Let $z = \frac { 2 + i } { 1 + i ^ { 2 } + i ^ { 5 } }$, then $\bar { z } =$
A. $1 - 2 i$
B. $1 + 2 i$
C. $2 - i$
D. $2 + i$

Let $z = \frac { 2 + i } { 1 + i ^ { 2 } + i ^ { 5 } }$, then $\bar { z } =$\\
A. $1 - 2 i$\\
B. $1 + 2 i$\\
C. $2 - i$\\
D. $2 + i$