Question: The matrix is not diagonalizable. (Why not?) Write A = I + B. Show that B 2 = 0 and thence that A = [1]
The matrix
![A = [1] 0](https://dsd5zvtm8ll6.cloudfront.net/si.question.images/images/question_images/1689/3/4/0/82664b14b9ac5e291689340826642.jpg)
is not diagonalizable. (Why not?) Write A = I + B. Show that B2 = 0 and thence that

A = [1] 0
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