Let `|z_(1)|=|z_(2)|=2` .Then `|((1)/(z_(1))+(1)/(z_(2)))/(z_(1)+z_(2))|` equals
`1/2`
`1/4`
2
1

|z_(1)|=|z_(2)| and arg((z_(1))/(z_(2)))=pi, then z_(1)+z_(2) is equal to

Let z_(1)=2-i,z_(2)=-2+i find (a)Re((z_(1)z_(2))/(z_(1)))

If z_(1),z_(2),z_(3) are complex numbers such that |z_(1)|=|z_(2)|=|z_(3)|=|(1)/(z_(1))+(1)/(z_(2))+(1)/(z_(3))|=1 then |z_(1)+z_(2)+z_(3)| is equal to

If z,z=z_(2) and |z_(1)+z_(2)|=|(1)/(z_(1))+(1)/(z_(2))| then

Let z_(1), z_(2) be two non-zero complex numbers such that |z_(1) + z_(2)| = |z_(1) - z_(2)| , then (z_(1))/(bar(z)_(1)) + (z_(2))/(bar(z)_(2)) equals

Let Z_(1) and z_(2) be two complex numbers with z_(1)!=z_(2) if |z_(1)|=sqrt(2), then |(z_(1)-bar(z)_(2))/(2-z_(1)z_(2))| equals

If |z_(1)|=1,|z_(2)|=2, then value of |z_(1)+z_(2)|^(2)+|z_(1)-z^(2)|^(2) is equal to

If z_(1)=2-i,z_(2)=1+i, find |(z_(1)+z_(2)+1)/(z_(1)-z_(2)+i)|

If ,z_(1)=,2-i,z_(2)=1+i find ,,|(z_(1)+z_(2)+1)/(z_(1)-z_(2)+i)|

Let x_(1) and y_(1) be real number. If z_(1) and z_(2) are complex numbers such that |z_(1)|=|z_(2)|=4 , then |x_(1)z_(1)-y_(1)z_(2)|^(2)+|y_(1)z_(1)+x_(1)z_(2)|^(2)=