What is the relationship between A and A^TA?

salman213 · Dec 7, 2007

3. a) Assume that A^−1 =

1 0 1
2 1 3
1 0 2

Determine the matrix A^TA

salman213 · Dec 7, 2007

what is (A^-1)^-1

Chris Hillman · Dec 7, 2007

Are these homework problems? If so, you should move these questions here. Note that "Homework Help" has some special rules, including this: you should show some work.

salman213 · Dec 7, 2007

nah it was on a past mid term that i was looking at i have a final coming up soon so i was just wondering but i figured it out after computing (A^-1)^-1

i guess that is A so I just take the transpose of that and multiply it by A

What is the relationship between A and A^TA?

Discussion

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What is the relationship between A and A^TA?

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