三角函数07 余弦函数(y=cosθ)的图像和应用_哔哩哔哩_bilibili

Name: %E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B007%20%E4%BD%99%E5%BC%A6%E5%87%BD%E6%95%B0(y=cos%CE%B8)%E7%9A%84%E5%9B%BE%E5%83%8F%E5%92%8C%E5%BA%94%E7%94%A8
Uploaded: 2025-07-26T15:06:41.940Z
Description: %E4%BD%99%E5%BC%A6%E5%87%BD%E6%95%B0(y=cos%CE%B8)%E7%9A%84%E5%9B%BE%E5%83%8F%E5%92%8C%E5%BA%94%E7%94%A8