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Fine the inverse of the matrix

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in Matrices by (40 points)

Find the inverse of the matrix 

A=  -2 3 4
       5 6 -10
       8  9  4

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1 Answer

+1 vote
by (20 points)
image
 
A-1 = [ 11/30    -4/30      3/10 ]

              5/9        2/9          0
 
              1/60      -7/30     1/6
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