一道三角函数向量平移问题!将y=2cos(x/3+pai/6)的图像按向量a=(-pai/4,-2)平移,平移后的图像为什么是y=2cos(x/3+pai/4)-2?不是向左移pai/4吗?为什么不是y=2cos(x/3+pai/6+pai/4)-2呢?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 06:28:18
![一道三角函数向量平移问题!将y=2cos(x/3+pai/6)的图像按向量a=(-pai/4,-2)平移,平移后的图像为什么是y=2cos(x/3+pai/4)-2?不是向左移pai/4吗?为什么不是y=2cos(x/3+pai/6+pai/4)-2呢?](/uploads/image/z/2476903-31-3.jpg?t=%E4%B8%80%E9%81%93%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0%E5%90%91%E9%87%8F%E5%B9%B3%E7%A7%BB%E9%97%AE%E9%A2%98%21%E5%B0%86y%3D2cos%28x%2F3%2Bpai%2F6%29%E7%9A%84%E5%9B%BE%E5%83%8F%E6%8C%89%E5%90%91%E9%87%8Fa%3D%28-pai%2F4%2C-2%29%E5%B9%B3%E7%A7%BB%2C%E5%B9%B3%E7%A7%BB%E5%90%8E%E7%9A%84%E5%9B%BE%E5%83%8F%E4%B8%BA%E4%BB%80%E4%B9%88%E6%98%AFy%3D2cos%28x%2F3%2Bpai%2F4%29-2%3F%E4%B8%8D%E6%98%AF%E5%90%91%E5%B7%A6%E7%A7%BBpai%2F4%E5%90%97%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E6%98%AFy%3D2cos%28x%2F3%2Bpai%2F6%2Bpai%2F4%29-2%E5%91%A2%3F)
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