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3. Consider the function f(x) = 12 - Vx| (c) [3 marks] Using your answer in part (b), show that f(x) is continuous on its domain. Justify your answer.
3. Consider the function f(x) = 12 - VX| (c) [3 marks] Using your answer in part (b), show that f(x) is continuous on its domain. Justify your answer.
100 000 (c) Are the columns of A linearly independent ? Justify your answer.