(a) Show that multiplication by A = 3 1 6 2 maps each point in the plane onto the line y
Chapter 4, Problem 17(choose chapter or problem)
(a) Show that multiplication by A = 3 1 6 2 maps each point in the plane onto the line y = 2x. (b) It follows from part (a) that the noncollinear points (1, 0), (0, 1), (1, 0) are mapped onto a line. Does this violate part (e) of Theorem 4.11.1?
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