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Point P,Q have homogeneous coordinates [1, -1, 0] and [0,1, 0] respectively. a) What is the...

Point P,Q have homogeneous coordinates [1, -1, 0] and [0,1, 0] respectively.

a) What is the equation of the line connecting points P,Q?

b) Are there any ideal points on the line in (a)?  

Proof please

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