求lim(x→0)xcotx的极限

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求lim(x→0)xcotx的极限
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求lim(x→0)xcotx的极限
求lim(x→0)xcotx的极限

求lim(x→0)xcotx的极限
lim(x→0)xcotx=lim(x→0)xcosx/sinx
=lim(x→0)x/sinx * lim(x→0)cosx
=1*1
=1