Y by scannose, Rounak_iitr
Let
be an acute triangle with
, and let
be the projection from
onto
. Let
be a point on the extension of
past
such that
. Let
be on the perpendicular bisector of
such that
and
are on the same side of
and
Let the reflection of
across
and
be
and
, respectively. Let
and
such that
. Let
and
intersect the circumcircles of
and
at
and
, respectively. Let
and
intersect
and
at
and
. Let
intersect
at
. Prove that
.














![\[\frac12\angle ALE=1.4\angle ABE+3.4\angle ACE-558^\circ\]](http://latex.artofproblemsolving.com/c/6/3/c63eeb053f1fa8a29bef93516814ae121382219e.png)























