M muttiah Banned Joined Aug 18, 2006 Messages 138 Gender Male HSC 2007 Dec 30, 2006 #1 The interval PQ has length p, and the pt A lies between the pts P and Q. Find PA when PQ x QA = PA^2 camrbduige qn 9 page 291
The interval PQ has length p, and the pt A lies between the pts P and Q. Find PA when PQ x QA = PA^2 camrbduige qn 9 page 291
Affinity Active Member Joined Jun 9, 2003 Messages 2,062 Location Oslo Gender Undisclosed HSC 2003 Dec 30, 2006 #2 let PA = x, then p(p-x)=x^2 x>0 x<p so you end up with x=(sqrt(5)-1)p/2
