tan(x-2/5π)怎么化简?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 09:42:00
tan(x-2/5π)怎么化简?tan(x-2/5π)怎么化简?tan(x-2/5π)怎么化简?tan(x-5π/2)?=tan(x-π/2-2π)=tan(x-π/2)=-cotx

tan(x-2/5π)怎么化简?
tan(x-2/5π)怎么化简?

tan(x-2/5π)怎么化简?
tan(x-5π/2)?
=tan(x-π/2-2π)
=tan(x-π/2)
=-cotx