What value(s) of k, if any, will the systems have (a) No solution, (b) A unique solution,
Question:
What value(s) of k, if any, will the systems have
(a) No solution,
(b) A unique solution,
(c) Infinitely many solutions?
x + y + z = 2
x + 4y - z = k
2x - y + 4z = k2
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