化简:sin(a-π)cot(a-2π)/cos(a-π)tan(a-2π)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 11:24:18
![化简:sin(a-π)cot(a-2π)/cos(a-π)tan(a-2π)](/uploads/image/z/2667066-42-6.jpg?t=%E5%8C%96%E7%AE%80%3Asin%28a-%CF%80%29cot%28a-2%CF%80%29%2Fcos%28a-%CF%80%29tan%28a-2%CF%80%29)
化简:sin(a-π)cot(a-2π)/cos(a-π)tan(a-2π)
化简:sin(a-π)cot(a-2π)/cos(a-π)tan(a-2π)
化简:sin(a-π)cot(a-2π)/cos(a-π)tan(a-2π)
=-sina*cota/-cosa*tana
=-sina*cota/-sina
=cota
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来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 11:24:18
化简:sin(a-π)cot(a-2π)/cos(a-π)tan(a-2π)
化简:sin(a-π)cot(a-2π)/cos(a-π)tan(a-2π)
化简:sin(a-π)cot(a-2π)/cos(a-π)tan(a-2π)
=-sina*cota/-cosa*tana
=-sina*cota/-sina
=cota