余弦函数图像与性质演示
2019-10-10 12:22
本范例展示了余弦函数的图像及其基本性质。通过动态构造，直观呈现了余弦曲线的周期性、振幅等特征。利用圆上的点旋转投影到坐标轴上，生动演示了三角函数的几何意义，帮助学生深入理解余弦函数的图像特征与三角比的关系。
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