The three vectors form a basis in R3 if and only if k does not equal ____?
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What ideas have you had so far?
Well, i know that v(1) v(2) and v(3) have to be linearly independent they also have to span V....
and i tried putting them into reduced row echelon form but i dont know what to do with the k
What did you get for the rref? As for the k, just treat it like any other number.
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