Find the locus of a point at which the angle subtended by the line segment joining `(1, 2) and (-1, 3)` is a right angle.

Bisecting the line segment joining (-1,4,3) and (5,-2,-1) at right angles.

Find the locus of a point such that the line segments having end points (2, 0) and (-2, 0) substend a right angle at that point.

Find the equation of the locus of the point P such that the line segment AB, joining the points A(1, -6) and B(4, -2), subtends a right angle at P.

Find the locus of a point such that the line segments having end points (2,0) and (-2,0) subtend a right angle at that point.

Find the locus of a point such that the line segments having end points (2,0) and (-2,0) subtend a right angle at that point.

Find the equation of the plane that bisects the line segment joining points (1, 2, 3) and (3, 4, 5) and is at right angle to it.

Find the equation of the plane that bisects the line segment joining points (1, 2, 3) and (3, 4, 5) and is at right angle to it.

Find the equation of a plane biscting the line segment joining (-1,4,3) and (5,-2,-1) at right angle.

Find the equation of the plane which bisects the line segment joining the points (-1, 2, 3) and (3, -5, 6) at right angles.