Use a graphing utility to find at least one number c at which lim x→c f(x) does not exist:
f(x) = (5x3- 22x2 + 15x + 18) / (x3 - 9x2 + 27x - 27)
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Use a graphing utility to find at least one number c at which lim x→c f(x) does not exist:
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