SOLUTION: An example of an invertible 1x1 matrix. An example of a noninvertible 2x2 matrix with 1s on the main diagonal.

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Question 20108: An example of an invertible 1x1 matrix. An example of a noninvertible 2x2 matrix with 1s on the main diagonal.

Answer by khwang(438) About Me  (Show Source):
You can put this solution on YOUR website!
An example of an invertible 1x1 matrix.
***Too simple, for you
An example of a noninvertible 2x2 matrix with 1s on the main diagonal.
[1 1]
[1 1]
What happened to you ?
Kenny