Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Let p : R→ R be a non-constant polynomial, that is, for every x in R, p(x) = α0 + α1x+
...
+ anx, with an + 0. Prove that, if n is even then lim→∞ p(x) = +∞ and
limx→-∞ p(x) = +∞ when an > 0, and lim→∞ p(x) =
· 0, and limÃ→∞ p(x) = −∞ and lim¸→-∞ p(x) =
when an < 0 and n is odd.
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Transcribed Image Text:Let p : R→ R be a non-constant polynomial, that is, for every x in R, p(x) = α0 + α1x+ ... + anx, with an + 0. Prove that, if n is even then lim→∞ p(x) = +∞ and limx→-∞ p(x) = +∞ when an > 0, and lim→∞ p(x) = · 0, and limÃ→∞ p(x) = −∞ and lim¸→-∞ p(x) = when an < 0 and n is odd.
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