A tangent line from the point to the circle
touches the circle at the point
. Compute
.
Credits – Southern California ARML, Oct. 2009, Individual round
A tangent line from the point to the circle
touches the circle at the point
. Compute
.
Credits – Southern California ARML, Oct. 2009, Individual round
Okay, so maybe it wasn’t that easy.
I got this problem wrong myself, so yeah.
Hanchan heroicly solved it!
It seems this is actually kind of difficult… harder than I thought >.>”