SOLUTION: Let matrix Determine whether multiplication by A is a one-to-one transformation. A = 1 -1 2 0 3 -4

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Question 1165601: Let matrix Determine whether multiplication by A is a one-to-one transformation.
A = 1 -1
2 0
3 -4
Answer by ikleyn(52785) About Me  (Show Source):
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Linear transformation from  R%5E3  to  R%5E2  can not be one-to-one.