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Answered Same Day Sep 03, 2021

Solution

Rajeswari answered on Sep 03 2021
148 Votes
64508 assignment
Q1
To find matrix inverse for 3x3 matrix using A/I method:
We use the fact A = AI
We do row transformations to get I on right side.
Since I = AA-1, now what we got for I is the inverse for A
Steps:
Q2
To find determinant of matrix
Expand by I row
We have determinant...
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