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For what value of the constant c is the function f continuous on (−, )? f(x) = cx2 + 2x if x < 3 x3 − cx if x ≥ 3
For what value of the constant c is the function f continuous on (−inf, inf )? f(x) = cx2 + 2x if x < 3 x3 − cx if x ≥ 3