Homework Statement
How to solve x for these inequality?
Homework Equations
|x-2|/|x+3|> (x+2) / (x+1)
The Attempt at a Solution
(x - 2)/(x + 3) > (x + 2) / ( x+1)
the left side holds the condition that is x >= 2
however, I wonder the next step. should I crossly multiply so...
Before I ask the question, let me remind that desargues theorem states :
if two triangles are perspective from one point then they are perspective from one line
I'd like to ask whether the order of the steps of the proof I did is correct or not. Since I saw the proof from an article but it...
I am new about conic in projective geometry since it seems to be really different in euclidean plane.
A conic is a subset of P2 given by a homogenous quadratic equation:
aX^2 + bY^2 + cZ^2 + dXY + eXZ + fYZ = 0
why is it homogeneous?
meanwhile, it suitable coordinates we have aX^2 +...