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#1 2014-04-02 00:42:01

iLloyd054
Member
Registered: 2014-04-01
Posts: 10

matrix A is symmetric, find values for a, b, and c

1. 3x3 matrix question.
                                                         2, s, t
Determine the value of 3s+t when A=  2, 0, s+t   is a symmetric matrix.
                                                        3, 3, t

Last edited by iLloyd054 (2014-04-02 01:00:24)

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#2 2014-04-02 02:40:50

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,717

Re: matrix A is symmetric, find values for a, b, and c

Hi iLloyd054;

Have you copied the problem correctly?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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#3 2014-04-02 04:28:49

iLloyd054
Member
Registered: 2014-04-01
Posts: 10

Re: matrix A is symmetric, find values for a, b, and c

ooh! my bad

1. 3x3 matrix question.
                                                         2, s, t
Determine the value of 3s+t when A= 2s, 0, s+t   is a symmetric matrix.
                                                         3, 3, t

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#4 2014-04-02 04:39:14

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,717

Re: matrix A is symmetric, find values for a, b, and c

This is the way I see your matrix A.

We have t = 3 and s = 0

so 3s + t = 3


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Online

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