高一最简三角方程下列方程同解的是A:(1-cosx)/sinx=0与tanx/2=0B sinx/(1+cosx)=0 tanx/2=0C sinx=0 tanx/2=0D cos2x+1=0 (tanx平方-1)/(tanx平方+1)=1哪个是对的.我怎么觉得没一个是对的啊?D 的 第二个解集怎么求
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 23:03:25
![高一最简三角方程下列方程同解的是A:(1-cosx)/sinx=0与tanx/2=0B sinx/(1+cosx)=0 tanx/2=0C sinx=0 tanx/2=0D cos2x+1=0 (tanx平方-1)/(tanx平方+1)=1哪个是对的.我怎么觉得没一个是对的啊?D 的 第二个解集怎么求](/uploads/image/z/6914087-71-7.jpg?t=%E9%AB%98%E4%B8%80%E6%9C%80%E7%AE%80%E4%B8%89%E8%A7%92%E6%96%B9%E7%A8%8B%E4%B8%8B%E5%88%97%E6%96%B9%E7%A8%8B%E5%90%8C%E8%A7%A3%E7%9A%84%E6%98%AFA%EF%BC%9A%EF%BC%881-cosx%29%2Fsinx%3D0%E4%B8%8Etanx%2F2%3D0B+sinx%2F%281%2Bcosx%29%3D0+tanx%2F2%3D0C+sinx%3D0+tanx%2F2%3D0D+cos2x%2B1%3D0+%28tanx%E5%B9%B3%E6%96%B9-1%29%2F%28tanx%E5%B9%B3%E6%96%B9%2B1%29%3D1%E5%93%AA%E4%B8%AA%E6%98%AF%E5%AF%B9%E7%9A%84.%E6%88%91%E6%80%8E%E4%B9%88%E8%A7%89%E5%BE%97%E6%B2%A1%E4%B8%80%E4%B8%AA%E6%98%AF%E5%AF%B9%E7%9A%84%E5%95%8A%3FD+%E7%9A%84+%E7%AC%AC%E4%BA%8C%E4%B8%AA%E8%A7%A3%E9%9B%86%E6%80%8E%E4%B9%88%E6%B1%82)
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