If `Z_(1)=-1,Z_(2)=-i` then find `Arg(Z_(1).Z_(2))`

If z_(1)=-1 and z_(2)=-i , then find Arg (z_(1)z_(2))

If z _(1) =- 1, and z _(2) =- i, then find Arg (z _(1) z _(2))

If z_(1), and z_(2) are the two complex numbers such that|z_(1)|=|z_(2)|+|z_(1)-z_(2)| then find arg(z_(1))-arg(z_(2))

If z_(1)=1+i,z_(2)=sqrt(3)+i then arg((z_(1))/(z_(2)))^(50) is

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)|

If |z_(1)|=|z_(2)| and arg (z_(1)//z_(2))=pi, then find z_(1)+z_(2) .

If |z_(1)|=|z_(2)| and arg (z_(1)//z_(2))=pi, then find the of z_(1)z_(2).

If |z_(1)|=|z_(2)| and arg (z_(1)//z_(2))=pi, then find the of z_(1)z_(2).