Answer :

Let A = [aij]2×3

So, the elements in a 3×4 matrix are


a11, a12, a13, a14, a21, a22, a23,a24,a31,a32,a33,a34


A = ……(1)


a11 = 2×1 = 2 a12 = 2×1 = 2 a13 = 2×1 = 2 a14 = 2×1 = 2


a21 = 2×2 = 4 a22 = 2×2 = 4 a23 = 2×2 = 4 a24 = 2×2 = 4


a31 = 2×3 = 6 a32 = 2×3 = 6 a33 = 2×3 = 6 a34 = 2×3 = 6


So, from (1)


A =


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