that is inscribed in 
. The incircle 
is tangent to 
at 
respectively. A line through 
parallel to 
intersects 
,
intersects 
.
is the midpoint of 
be the second intersection of 
with 
intersects 
.
bisects 
.
let 
be the smallest possible integer that has exactly 
positive divisors (so for example we have 
and 
)
the number 
divides 
and 
.
satisfies the following three conditions:
All elements of 
.
.
Y by Adventure10, Mango247
Problem :
Let
be the inner angled-bisectors of a triangle 
The incenter , circumcenter , the inradius, circumradius of which are respectively
Let Q be the center of the escribed circle of in the angle 
Prove that :
a/
where 
is the distance form 
to 
b/
Love An Forever
Let
be the inner angled-bisectors of a triangle 
The incenter , circumcenter , the inradius, circumradius of which are respectively
Let Q be the center of the escribed circle of
in the angle 
Prove that :
a/
where 
is the distance form 
to 
b/
Love An Forever
.
