[/quote]
,
,
such that 
is a perfect square? (Here 
denotes the integer part of the real number 
?
be an acute triangle with 
,
be the intouch triangle with 
,
,
,
be the intersecttion of the perpendicular from 
to 
with 
,
.
and 
are concylic
the set 
can be partitioned into 
triples in such a way that the numbers from each triple are the lengths of the sides of some obtuse triangle.
,
,
.
and that 
.
and 
be the midpoints of sides 
,
and 
be the feet of the altitudes from 
and 
in 
,
be the intersection of line 
with the tangent line to 
.
be the intersection point, other than 
.
be the intersection of lines 
and 
.
with centre 
passes through 
respectively. Let 
,
is equidistant from 
is a cyclic quadrilateral inscribed in a circle of radius one unit. If 
,
,
,
,
satisfy 
and 
.
of 
such that 
.
and 
)
Prove that if lines 
are similar.
such that 
, where 
are non-negative reals such that 
.
.
Y by
many older / past links inside aops have gone dead / become broken
such as the 1st link from here (this one )
and older such as this one from here [this one uses the url http://www.mathlinks.ro]
I have seen it in many links before year 2010
is their any way to make those old links work / stay alive?
such as the 1st link from here (this one )
and older such as this one from here [this one uses the url http://www.mathlinks.ro]
I have seen it in many links before year 2010
is their any way to make those old links work / stay alive?
This post has been edited 8 times. Last edited by parmenides51, Nov 6, 2022, 10:55 AM
