Samridhi B.

asked • 09/16/18

I wanted to know how to reduce 3x3 matrix into diagonal form

Matrix is-
1st row 
1  2  -2
2nd row 
1. 2. 1
3 row
-1 -1 0

1 Expert Answer

By:

Mark M.

tutor
Then, add -2 times row 2 to row 1 and replace row 1:  1    0   2
                                                                               0    1  -2
                                                                               0    0   1
   
Add -2 times row 3 to row 1 and replace row 1
Add  2 times row 3 to row 2 and replace row 2:     1    0    0
                                                                         0    1    0
                                                                         0    0    1
 
Mark M (Bayport, NY) 
Report

09/16/18

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