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[函数] 三角小计算题 $\tan20\du \csc60\du (\csc10\du-1)=?$

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史嘉 posted 2014-3-5 16:50 |Read mode
Last edited by hbghlyj 2025-4-23 12:34答案是2.
公式用了一通,没结果。请教大家。
计算tan20°csc60°(csc10°-1)=?

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original poster 史嘉 posted 2014-3-5 16:57
回复 1# 史嘉

发过后悔了,知道老K会编辑的,很快改了,
可,图片删了,没掉。

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kuing posted 2014-3-5 16:58
回复 2# 史嘉

噢,你可以再编辑

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original poster 史嘉 posted 2014-3-5 17:23
Last edited by 史嘉 2014-3-5 21:42回复 3# kuing

有位江西熊老师做的,不耽误大家的时间了,发来。

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