In the given question(in the photo) , can I first simplify the given matrix A then solve?? Please give the solution to this question(given in the photo) in well detailed manner .

In the given question(in the photo) , can I first simplify the given matrix A then solve?? Please give the solution to this question(given in the photo) in well detailed manner . e d guis

Dear student
Since it is not mentioned which question to do. So, providing solution for Que 1 because it also contains matrix A.
No, we cannot simplify A.
A=133143134We have, A=IA133143134=100010001AR2R2-R1,R3R3-R1133010001=100-110-101AR1R1-3R2103010001=4-30-110-101AR1R1-3R3100010001=7-3-3-110-101ASo, Inverse of A is 7-3-3-110-101

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