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There is no value cot 0, because cot 0 is equivalent to 1 / tan 0, which is equivalent to 1 / 0, which is undefined.

That said, the limit of cot x as x approaches 0 is infinity.

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โˆ™ 2011-11-02 17:33:05
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Q: What is the exact trigonometric function value of cot 0?
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