Geometry: I don't know the relationship between the tangents and secantes.
A formula that can be used is: AF·AF = AB·AC or: AF2 = AB·AC
Thanks Geno, I always forget that one. :)
I was looking at this one from yesterday, maybe from the same guest, i haven't worked it out yet.
Maybe you would like to take a look. :)
It would be much easier to find and track you questions (for you and everyone else) if you became a member!
You would even get email alerts (if you ask for them) when someone answers you!