Guass Jordan Problem & determinant problems

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Guass Jordan Problem and Determinant problems
1)2x-y+3z=9,x+y+z=6,x-y+z system of equations by Guass Jordan Method
2.|a b c |^2
|b c a | =(a^3+b^3+c^3-3abc)^2
|c a b |
3.|a a^2 1+a^3|
|b b^2 1+b^3|=0 the Show that
|c c^2 1+c^3|
abc=-1
4.|b+c c+a a+b|
|a+b b+c c+a|=a^3+b^3+c^3-
| a b c | 3abc
#mathsvedios #maths #matrix ‪@Mathatics-MAS‬

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