Y by Adventure10, Mango247
Let
be a triangle and
be its angle bisectors. Intersection of
is
(
difine similarly)
intersection of
and circumcircle of
is
and intersection of the circumcircles of
is
. Prove that
are concurrent.





intersection of






This post has been edited 4 times. Last edited by mohammad14101381, Jun 30, 2019, 6:42 AM