If A=[(0, 2),( 3,-4)] and k A=[(0, 3a),...

If `A=[(0, 2),( 3,-4)]` and `k A=[(0, 3a),(2b, 24)]` , then the values of `k ,\ a ,\ b` , are respectively (a) -6, -12, -18 (b) -6, 4, 9 (c) -6, -4, -9 (d) -6, 12, 18

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