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anonymous
 5 years ago
Suppose that A is nxn. Show that Ax = A^Tx if and only if AA^T = A^TA. Cite any theorems or definitions used.
A^T represents A transpose.
anonymous
 5 years ago
Suppose that A is nxn. Show that Ax = A^Tx if and only if AA^T = A^TA. Cite any theorems or definitions used. A^T represents A transpose.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ax means the length or magnitude of Ax?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0And the if and only if means that we have to prove both ways

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay. I'll try and see what I can do.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I don't think I an around there. Maybe not now.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0If I ever got an idea, I would post it here.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay thanks for the help tho ... youve already taken linear algebra?
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