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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 at 2014-3-5 16:50:45 |Read mode
Last edited by 史嘉 at 2014-3-5 17:21:00答案是2.
公式用了一通,没结果。请教大家。
计算tan20°csc60°(csc10°-1)=?


____kuing edit in $\mathrm\LaTeX$_____
[/attachimg]9[/attachimg]
12.jpg

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 Author| 史嘉 Posted at 2014-3-5 16:57:48
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 at 2014-3-5 16:58:21
回复 2# 史嘉

噢,你可以再编辑

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 Author| 史嘉 Posted at 2014-3-5 17:23:47
Last edited by 史嘉 at 2014-3-5 21:42:00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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2025-4-22 09:47 GMT+8

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