# Homework Help: Question from test capabilities

1. Nov 23, 2008

### m_s_a

1. The problem statement, all variables and given/known data

from test capabilities

True Or False Questions

stereographic projection for
space R3 is the set of points (x, y, 0) and radius 1 is the circle
X2 + Y2 = 1
stereographic projection for
space R3 is the set of points (x, y, 0) and radius r is the circle
X2 + Y2 = 1
on R2 space
stereographic projection for
space R3 is the set of points (x, y, z) and radius 1 is the circle
X2 + Y2 = 1

2. Relevant equations

http://en.wikipedia.org/wiki/Stereographic_projection

3. The attempt at a solution

2. Nov 23, 2008

### Pere Callahan

That's what we all want.
Maybe you should apply more care in at least copying the question correctly. These are not sensible questions yet alone sentences. Maybe you try again asking what you don't understand and please show some effort you have put into answering these questions yourself (Linking to wikipedia is not quite enough.)