B bos1234 Member Joined Oct 9, 2006 Messages 491 Gender Male HSC 2007 Jul 3, 2007 #1 P lies on the ellipse + = 1. Find the locus of the midpoint PS where S is a focus
P pLuvia Guest Jul 3, 2007 #2 Let P be (acos@, bsin@), S is (ae,0) Now, find the midpoint of PS Then you have an x and y coordinate, square both the x and y coordinates and add them together and then simplify and you should get a circle or an ellipse as the locus Last edited by a moderator: Jul 3, 2007
Let P be (acos@, bsin@), S is (ae,0) Now, find the midpoint of PS Then you have an x and y coordinate, square both the x and y coordinates and add them together and then simplify and you should get a circle or an ellipse as the locus
B bos1234 Member Joined Oct 9, 2006 Messages 491 Gender Male HSC 2007 Jul 3, 2007 #3 do u square and add because the midpoint follows a circular/elliptic path?? is that the reason?
