On the augmented matrix A below, perform all three row operations in the order given, ((a) followed by (b) followed by (c)) and then write the resulting augmented matrix. a) R₂ = -4r1+r₂ b) R3 = 4r1+r3 [c)R3 = 4r2+r3 1 -3 -1 44400 -11 5 -4 8 -6 A =

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