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arccos0.2等于多少度啊
更新时间: 2020-09-21 00:00:00  

反余弦函数可在科学计算器上计算。

先将0.2转换成度数,就是0.2弧度=0.2÷πx180°≈0.2÷3、14x180°≈11、465°,

按"SHIFT"键,然后再按"cos"键~再输入11、465°,最后按=即可。

关键词: arccos0 等于 多少

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