求下列三角函数的值 1.cos29π/6 2.sin17π/6
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发布时间:2024-10-19 05:29
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热心网友
时间:2024-11-25 03:11
1.cos29π/6
=cos(4π+5π/6)
=cos5π/6
=-√3/2
2.sin17π/6
=sin(2π+5π/6)
=sin5π/6
=1/2
热心网友
时间:2024-11-25 03:08
1.cos29π/6
=cos(4π+5π/6)
=cos5π/6
=-√3/2
2.sin17π/6
=sin(2π+5π/6)
=sin5π/6
=1/2