Question

mod of z + i is less than equal to 2. Z =5+3i ,then maximum value of mod of iz+Z will be? classXI

Answer 1

z+i= 2
so z=1
i=1
so - Z=5+3×1=8
z=1
I=1
Z=8
then --iz+Z
= 1×1+8
= 9 -----------Ans