What is the limit of f(x) as x approaches positive and negative infinity where f(x) = (x^3)*e^(-x)?
f(x) = (x^3) * e^(-x) = (x^3) / e^(x)
(1) As x tends to +infinity, (x^3) * e^(-x) tends to 0.
[Reason: As x tends to ...
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