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8 steps: (1) A function f is continuous at x=a if ALL THREE conditions hold: (2) Condition 1: f(a) EXISTS (the point is defined). (3) Condition 2: lim(x→a) f(x) EXISTS (left and right limits are equal). (4) Condition 3: lim(x→a) f(x) = f(a) (the limit equals the function value). (5) Type 1 discontin

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