设周期为的周期函数f(x)满足收敛定理的条件下,则它的傅里叶级数展开式为./ananas/latex/p/152849/ananas/latex/p/1578786
设周期为的周期函数f(x)满足收敛定理的条件下,则它的傅里叶级数展开式为./ananas/latex/p/152849/ananas/latex/p/1578786
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设周期为的周期函数f(x)满足收敛定理的条件下,则它的傅里叶级数展开式为./ananas/latex/p/152849/ananas/latex/p/1578786