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诱导公式求三角函数值tan(331π/3)
tan(331π/3)
tan(6131π/6)
sin101π
人气:487 ℃ 时间:2020-03-27 20:54:57
解答
检举 1 = tan(110π+π/3)=tanπ/3
2=tan(1020π+π/6)=tanπ/6
3=sin(50*2π+π)=sinπ
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