Prove that at affine transformation parallel lines transform into parallel lines.
Expert's answer
According to definition the shape of lines are lines, and from one-oneness of affine transformation follows that shapes of non-intersecting lines do not intersect.
Finding a professional expert in "partial differential equations" in the advanced level is difficult.
You can find this expert in "Assignmentexpert.com" with confidence.
Exceptional experts! I appreciate your help. God bless you!