求4pai(即3.14)/3 的六个三角比的值
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发布时间:2023-07-11 06:14
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时间:2024-11-24 09:34
sin(4/3π)=sin(π+π/3)=-sin(π/3)=-√3/2
cos(4/3π)=cos(π+π/3)=-cos(π/3)=-1/2
tan(4/3π)=sin(4/3π)/cos(4/3π)=√3
cot(4/3π)=cos(4/3π)/sin(4/3π)=√3/3
sec(4/3π)=1/cos(4/3π)=-2
csc(4/3π)=1/sin(4/3π)=-2√3/3