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sinθ=0.23 θ=?

分类: 作业答案 • 2022-06-20 08:49:52

问题描述：

sinθ=0.23 θ=?

答

sinθ=0.23 ,
取0.23的反正弦即可.
故θ=arcsin(0.23)=13.29707174720906度

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sin（-23π/3）=

sinθ=0.23 θ=?

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