Question: Please answer and show all work: Question 7 (1 point) Find a basis of ker T. T: Mm Mm; T I =XA - AX, where

Please answer and show all work:

Question 7 (1 point) Find a basis of ker T. T: Mm Mm; T I =XA - AX, where A Question B (1 point) Which of the following can NOT be proven using the Cauchy Inequality. If x and y are vectors in Rn. then | I + yl| = ||x - yl|. O ry 1. If x and y are vectors in Rn, then | |I + y)| = Ixl| + Hyll

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