三角函数诱导公式一（周期关系）动态演示
2020-03-13 13:04
本范例动态演示了三角函数诱导公式一（即周期关系：sin(α+2kπ)=sinα，cos(α+2kπ)=cosα，tan(α+2kπ)=tanα）。通过在单位圆上构造角α及其加上2kπ后的终边，展示对应点的坐标变化规律，直观揭示正弦、余弦、正切函数的周期性本质。适合高中数学三角函数章节的教学与复习。
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