Question: True or false If a 2 x 2 matrix is the standard matrix of an injective linear transformation T, then T cannot be surjective. Let

True or false

  • If a 2 x 2 matrix is the standard matrix of an injective linear transformation T, then T cannot be

surjective.

  • Let A be a 3 x 2 matrix, and B be a 3 x 3 matrix. If B is invertible and BA = 0, then every vector v

in R2 satises Av = 0.

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