hey, I am going through artin 1st edition myself and I am having problems with 2 questions from chapter 4. Thanks for your help.
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Originally Posted by shimara hey, I am going through artin 1st edition myself and I am having problems with 2 questions from chapter 4. Thanks for your help. Let's go one at a time. For the second question, part a) you know that but so this says . How can you use this to get an expression for ?
Originally Posted by Drexel28 Let's go one at a time. For the second question, part a) you know that but so this says . How can you use this to get an expression for ? Thanks, I am sorry about this, I think it is wrong.
Almost- you don't want that "I" in the denominator: .
Originally Posted by HallsofIvy Almost- you don't want that "I" in the denominator: . Oh yeah, thanks, so for part b, n=2 Let So But this does not give me the correct for a 2x2 matrix.
Last edited by shimara; Oct 12th 2011 at 05:19 PM.
you are not quite applying the formula correctly. , so does that look any better?
Thank You Deveno, it works now. I am still having trouble with the other question though.
what do you have so far?
nothing, that is why I need a little help.
well, you know x is an eigenvector for A, and y is an eigenvector for B^T, what can you do with that?
I have been trying to think about that but nothing comes to mind immediately.
Well I thought about doing this: edit: sorry, stupid thought. Can someone give me a good hint on how to do this question? Thanks
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