Hey guys, thanks for all the replies!
I found a general formula but it wasn't the correct one; it only seemed to work for r=1. I was told by my teacher that the actual formula is r^2/OY, but I don't see a way that I could derive that...
For reference, my formula is OX =...
Hey everyone, my friend found this math problem that he couldn't figure out and gave to me. I thought it was quite interesting. So far I haven't been able to find a way to get into it though.
There's a circle, C1, with centre O and radius r. Point Y is anywhere outside the circle. Circle C3 has...