given the system of 3 linear equations : 4X 1 + 8X 2 + 1X 3 = 3 2X 1 + 9X 2 + 7X 3 = 4 1X 1 + 2X 2 + 4X 3 = 2 what is the 2nd row of the matrix A x2 , used in cramer's rule to calculate the value of X 2 ?

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given the system of 3 linear equations :

4X₁ + 8X₂ + 1X₃ = 3

2X₁ + 9X₂ + 7X₃ = 4

1X₁ + 2X₂ + 4X₃ = 2

what is the 2nd row of the matrix A_x2, used in cramer's rule to calculate the value of X₂?

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