函数f(x)=|sinπ/2x|+|cosπ/2x|的最小正周期是?
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函数f(x)=|sinπ/2x|+|cosπ/2x|的最小正周期是?
函数f(x)=|sinπ/2x|+|cosπ/2x|的最小正周期是?
函数f(x)=|sinπ/2x|+|cosπ/2x|的最小正周期是?
把sin[(π/2)x]和cos[(π/2)x]图像的下半部分翻转上来,就可知周期为不加绝对值时的一半,T'=(1/2)T
=2
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