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15问答网 > sin二分之三π的计算过程是什么？

sin二分之三π的计算过程是什么？

2025-03-26 09:35:43

推荐回答（3个）

回答1：

sin(π+0.5π)=-sin(0.5π)=-1

回答2：

sin(3π/2)=sin[π+(π/2)]=-sin(π/2)=-1

回答3：

sin3π/2=sin(π+π/2)=sin(-π/2)=-sinπ/2=-1

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