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=Rhea Section for MA 35100 Professor Kummini, Spring 2011=
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Can anyone please help me in the question no. 25 of exercise 7.3? I am having a lot of trouble in comprehending how to calculate the multiplicity.
  
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The geometric multiplicity of a matrix is directly related to the no. of independent eigenvectors in the eigen basis. Since, the no. of independent vectors is 3 (column wise), therefore, the geometric multiplicity is 3.
  
Can someone help me in the question number 16 from section 5.1
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Can anyone please explain me how to go about solving Q. 14 Exercise 7.3 ? i guess i'm probably making a mistake somewhere in my calculations ...  
I am not able to understand what will be the condition for the vectors to be orthonormal.
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Hello, I am getting the lambda values to be 0,0,1 for the question. The determinant value becomes 0 =-(lambda)^3+ 2(labmda)^2 - labmda.Now it should be pretty straight forward to find out the corresponding eigen-vectors.
  
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Hi, for Q. 14 in Section 7.3, I calculated the determinant to be 0 = [-(lambda)][(1-lambda)^2].  Therefore, I got three eigenvalues of: lambda = 0, lambda = 1, lambda = 1.  Which led to an eigenbasis of: [0 1 0], [1 -5 0], [0 2 1]
[[Category:MA35100Spring2011Kummini]]
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Did you mean orthogonal? I believe the problem said that the vectors had to be orthogonal. In order for that to be true, you have to do the dot product between all four vectors and it must equal zero. To start it, I just created a new 4x1 vector with four different variables, and made did the dot product and set it equal to zero. From there, you can figure out the vectors you need to solve for. (written by lmhoward)
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<br> Hey friends, like geometric multiplicity of an eigenvalue is related to the nullity of the matrix (A- λIn), is there a way to relate algebraic multiplicity on similar terms&nbsp;?
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Yea.I meant orthogonal.sorry. Thank you though for the answer.  
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<br> Review for final Chapter 1 &amp;2 by B Zhou [https://kiwi.ecn.purdue.edu/rhea/index.php/Homework_MA351_Spring_2011]
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Review for final Chapter 3&amp;4 By B zhou [https://kiwi.ecn.purdue.edu/rhea/index.php/Chpater3%264_MA351Spring2011]
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Various exercises from Chapters 6 &amp; 7, by Dan Coroian (dcoroian)&nbsp;[[Final review Chs. 6 & 7 (MA351Spring2011)|Final review]]
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Hey.Can anyone please explain me the 20th question of exercise 7.1. I am not able to understand how to interpret the question. Thanks
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I believe that there would be no eigenvalue corresponding to the rotation in about e3 in R3&nbsp;! However, I would recommend asking the question to Prof. Kummini in this regard&nbsp;!
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Hey I think the eigenvalue would be 1 since any vector on the axis spanned by e3 would be an eigen vector&nbsp;!
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I'm having some trouble calculating Q. 14 of Section 7.1.  If someone is able to start it out I would really appreciate it!

Latest revision as of 12:27, 6 May 2011

Can anyone please help me in the question no. 25 of exercise 7.3? I am having a lot of trouble in comprehending how to calculate the multiplicity.

The geometric multiplicity of a matrix is directly related to the no. of independent eigenvectors in the eigen basis. Since, the no. of independent vectors is 3 (column wise), therefore, the geometric multiplicity is 3.

Can anyone please explain me how to go about solving Q. 14 Exercise 7.3 ? i guess i'm probably making a mistake somewhere in my calculations ...

Hello, I am getting the lambda values to be 0,0,1 for the question. The determinant value becomes 0 =-(lambda)^3+ 2(labmda)^2 - labmda.Now it should be pretty straight forward to find out the corresponding eigen-vectors.

Hi, for Q. 14 in Section 7.3, I calculated the determinant to be 0 = [-(lambda)][(1-lambda)^2]. Therefore, I got three eigenvalues of: lambda = 0, lambda = 1, lambda = 1. Which led to an eigenbasis of: [0 1 0], [1 -5 0], [0 2 1].


Hey friends, like geometric multiplicity of an eigenvalue is related to the nullity of the matrix (A- λIn), is there a way to relate algebraic multiplicity on similar terms ?

Yea.I meant orthogonal.sorry. Thank you though for the answer.




Review for final Chapter 1 &2 by B Zhou [1]


Review for final Chapter 3&4 By B zhou [2]


Various exercises from Chapters 6 & 7, by Dan Coroian (dcoroian) Final review


Hey.Can anyone please explain me the 20th question of exercise 7.1. I am not able to understand how to interpret the question. Thanks

I believe that there would be no eigenvalue corresponding to the rotation in about e3 in R3 ! However, I would recommend asking the question to Prof. Kummini in this regard !

Hey I think the eigenvalue would be 1 since any vector on the axis spanned by e3 would be an eigen vector !


I'm having some trouble calculating Q. 14 of Section 7.1. If someone is able to start it out I would really appreciate it!

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