# If mode of z1 = 1 , mode of z2=2 , mode of z3=3 & mode of z1+z1+z3 = 1 then , mode of 9z1z2 + 4z3z1+z2z3 is equal to?

Arun Kumar IIT Delhi
8 years ago
$|\overline Z_{1}\overline Z_{2}\overline Z_{3}|=| Z_{1}+ Z_{2}+ Z_{3}|=|Z_{1}^2/Z_{1}+Z_{2}^2/Z_{2}+Z_{3}^2/Z_{3}| \\=|1/Z_{1}+4/Z_{2}+9/Z_{3}|$

Solving which you will get the solution.

Arun Kumar
IIT Delhi