COSX乘以COSX是等于COS²X还是COS2X,弄不清啊.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/20 09:27:19
![COSX乘以COSX是等于COS²X还是COS2X,弄不清啊.](/uploads/image/z/3939075-27-5.jpg?t=COSX%E4%B9%98%E4%BB%A5COSX%E6%98%AF%E7%AD%89%E4%BA%8ECOS%26%23178%3BX%E8%BF%98%E6%98%AFCOS2X%2C%E5%BC%84%E4%B8%8D%E6%B8%85%E5%95%8A.)
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COSX乘以COSX是等于COS²X还是COS2X,弄不清啊.
COSX乘以COSX是等于COS²X还是COS2X,弄不清啊.
COSX乘以COSX是等于COS²X还是COS2X,弄不清啊.
COSX乘以COSX等于COS²X
COS2X是2x的余弦,而COS²X是x余弦的平方
COSX乘以COSX=COS²X