The center of a regular polygon of n sides is located at the point z=0, and one of its vertex `z_(1)` is known. If `z_(2)` be the vertex adjacent to `z_(1)`, then `z_(2)` is equal to

The centre of a regular hexagon is i.One vertex is 2+i and z is an adjacent vertex. Then z is equal to

If z_1& z_1 represent adjacent vertices of a regular polygon on n sides with centre at the origin & if (l m(z_1))/(R e(z_1))=sqrt(2)-1 then the value of n is equal to: 8 (b) 12 (c) 16 (d) 24

If z_1 and bar z_1 represent adjacent vertices of a regular polygon of n sides where centre is origin and if (Im(z))/(Re(z)) = sqrt(2) - 1, then n is equal to: (A) 8 (B) 16 (C) 24 (D) 32

If for complex numbers z_(1) and z_(2) , arg z_(1)-"arg"(z_(2))=0 then |z_(1)-z_(2)| is equal to

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

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

Points z_(1)&z_(2), are adjacent vertices of a regular octagon.The vertex z_(3) adjacent to z_(2)(z_(3)!=z_(1)) is represented by