If P' is the isogonal conjugate of Q wrt DEF, then P' lies on OI. The mapping P-> P' is a projective transformations on the line OI and its fixed points are X(3513) and X(3514).Angel Montedeoca
Let ABC be a triangle with P, Q are two points on Euler line of ABC. A',B',C' are inverse images of A,B,C through circle diame...
If P' is the isogonal conjugate of Q wrt DEF, then P' lies on OI.
ReplyDeleteThe mapping P-> P' is a projective transformations on the line OI and its fixed points are X(3513) and X(3514).
Angel Montedeoca