求极限lim _(xarrow 0)cot x(dfrac (1)(x)-dfrac (1)(sin x))-|||-__解法如下,原式lim _(xarrow 0)cot x(dfrac (1)(x)-dfrac (1)(sin x))-|||-__lim _(xarrow 0)cot x(dfrac (1)(x)-dfrac (1)(sin x))-|||-__lim _(xarrow 0)cot x(dfrac (1)(x)-dfrac (1)(sin x))-|||-__A.对 B.错

求极限

解法如下,原式

A.对           B.错

参考答案与解析:

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