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3. Use the method of Gaussian elimination to find the inverse of each of the following matrices, provided the inverse exists.
(a)
(b)
(c)
⎛1 2 3⎞ ⎝0	1	2⎠	Solution:	According to the method of Gaussian elimination, we have to apply
002
elementary row operations to the given matrix;


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3.
Use the method of Gaussian elimination to find the inverse of each of the following matrices, provided the inverse exists.
(a) (
123012002
) Solution: According to the method of Gaussian elimination, we have to apply elementary row operations to the given matrix;



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 3.
 Use the method of Gaussian elimination to find the inverse of each of the following matrices, provided the inverse exists. (a)
1

2

3


0

1

2


0

0

2







 Solution: According to the method of Gaussian elimination, we have to apply elementary row operations to the given matrix;



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 3. Use the method of Gaussian elimination to find the inverse of each of the following matrices, provided 
the inverse exists. 
(a) : matrix: : first row: one : entry: two : cell: three : : end of row: : next row: zero : cell: one : cell: two : : end of row: : next row: zero : cell: zero : cell: two : end of matrix: Solution: According to the method of Gaussian elimination, we have to apply 
elementary row operations to the given matrix;


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<LI>
<Lbl> 3.</Lbl>

<LBody> Use the method of Gaussian elimination to find the inverse of each of the following matrices, provided the inverse exists.
<L>
<LI>
<Lbl>(a)</Lbl>

<LBody><Formula>

<math xmlns="http://www.w3.org/1998/Math/MathML"  display="inline" >
<mrow>
<mfenced separators=""  open="("  close=")" >
<mrow>
<mtable style="text-align:axis;"  class="array"  equalrows="false"  columnlines="none none none none none none none none none"  equalcolumns="false" >
<mtr>
<mtd class="array"  columnalign="center" >
<mn>1</mn>
</mtd>

<mtd class="array"  columnalign="center" >
<mn>2</mn>
</mtd>

<mtd class="array"  columnalign="center" >
<mn>3</mn>
</mtd>
</mtr>

<mtr>
<mtd class="array"  columnalign="center" >
<mn>0</mn>
</mtd>

<mtd class="array"  columnalign="center" >
<mn>1</mn>
</mtd>

<mtd class="array"  columnalign="center" >
<mn>2</mn>
</mtd>
</mtr>

<mtr>
<mtd class="array"  columnalign="center" >
<mn>0</mn>
</mtd>

<mtd class="array"  columnalign="center" >
<mn>0</mn>
</mtd>

<mtd class="array"  columnalign="center" >
<mn>2</mn>
</mtd>
</mtr>
</mtable>
</mrow>
</mfenced>
</mrow>
</math>
</Formula>
 Solution: According to the method of Gaussian elimination, we have to apply elementary row operations to the given matrix;