Consider the following system of linear equations



Notice that the second and the third columns of the coefficient matrix are linearly dependent. For how many values of a, does this system of equations have infinitely many solutions?
(A) 0
(B) 1
(C) 2
(D) infinitely many


Answer: (B)

Explanation:

This solution is contributed by Anil Saikrishna Devarasetty.

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