Question
Mathematics Question on sets
If the set (Re(2−3z+5zˉz−zˉ+zzˉ):z∈C,Re(z)=3) is equal to the interval (α,β), then 24(β-α) is equal to
A
27
B
30
C
36
D
42
Answer
30
Explanation
Solution
The correct option is(B): 30
If the set (Re(2−3z+5zˉz−zˉ+zzˉ):z∈C,Re(z)=3) is equal to the interval (α,β), then 24(β-α) is equal to
27
30
36
42
30
The correct option is(B): 30