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What is the limit as $x\to\infty$ of $\cos x$?

Thanks in advance.

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    In the immortal words of Lindsay Lohan...2011-01-19
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    @Qiaochu: your joke eludes me. Citation please?2011-01-19
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    @Willie: http://www.youtube.com/watch?v=QIMSC-RWvF8 (skip to 7:40 for the problem and 8:10 or so for its solution).2011-01-19
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    thank you Qiaochu! Damn that was worth wasting 9 minutes of my life!2011-01-21

4 Answers 4