On the Argand plane ,let `z_(1) = - 2+ 3z,z_(2)= - 2-3z` and `|z| = 1`. Then

If z_(1),z_(2) and z_(3) are the vertices of a right angledtriangle in Argand plane such that |z_(1)-z_(2)|=3,|z_(1)-z_(3)|=5 and z_(2) is the vertex with the right angle then

Let A(z_(1)),B(z_(2)) be two points in Argand plane where z_(1)=1+i,z_(2)=2i and C(z) is a point on the reeal axis then the least value of |z_(1)-z_(2)|+|z-z_(2)| is equal to

On the Argand plane z_(1),z_(2) and z_(3) are respectively,the vertices of an isosceles triangle ABC with AC=BC and equal angles are theta. If z_(4) is the incenter of the triangle,then prove that (z_(2)-z_(1))(z_(3)-z_(1))=(1+sec theta)(z_(4)-z_(1))^(2)

Let z_(1),z_(2) and z_(3) represent the vertices A,B, and C of the triangle ABC , respectively,in the Argand plane,such that |z_(1)|=|z_(2)|=|z_(3)|=5. Prove that z_(1)sin2A+z_(2)sin2B+z_(3)sin2C=0

If A(z_(1)) and B(z_(2)) are two points in the Argand plane such that z_(1)^(2)+z_(2)^(2)+z_(1)z_(2)=0 , then triangleOAB , is

, a point 'z' is equidistant from three distinct points z_(1),z_(2) and z_(3) in the Argand plane. If z,z_(1) and z_(2) are collinear, then arg (z(z_(3)-z_(1))/(z_(3)-z_(2))). Will be (z_(1),z_(2),z_(3)) are in anticlockwise sense).

If z_(1), z_(2) and z_(3) are the vertices of a triangle in the argand plane such that |z_(1)-z_(2)|=|z_(1)-z_(3)| , then |arg((2z_(1)-z_(2)-z_(3))/(z_(3)-z_(2)))| is

If z_(1), z_(2) and z_(3) are the vertices of a triangle in the argand plane such that |z_(1)-z_(2)|=|z_(1)-z_(3)| , then |arg((2z_(1)-z_(2)-z_(3))/(z_(3)-z_(2)))| is

If A(z_(1)) and A(z_(2)) are two fixed points in the Argand plane and a point P(z) moves in the Argand plane in such a way that |z-z_(1)|=|z-z_(2)| , then the locus of P, is

If A (z_1), B (z_2) and C (z_3) are three points in the argand plane where |z_1 +z_2|=||z_1-z_2| and |(1-i)z_1+iz_3|=|z_1|+|z_3|-z_1| , where i = sqrt-1 then