将函数展成幂级数.

A .https://assets.asklib.com/psource/2015103008541736328.jpg B .https://assets.asklib.com/psource/2015103008543025282.jpg C .https://assets.asklib.com/psource/2015103008544162569.jpg D .https://assets.asklib.com/psource/2015103008545413665.jpg

A . A B . B C . C D . D

<img src='https://img2.soutiyun.com/ask/2020-12-22/977479103761578.png' />

<img src='https://img2.soutiyun.com/ask/2021-01-25/98044366648261.png' />

<img src='https://img2.soutiyun.com/ask/2021-01-05/978723648645819.png' /> <img src='https://img2.soutiyun.com/ask/2021-01-05/978723658290371.png' />

将函数<img src='https://img2.soutiyun.com/shangxueba/ask/18747001-18750000/18749367/2016071617013646896.jpg' />，在［-π，π］上展开成傅里叶级数，其形式为<img src='https://img2.soutiyun.com/shangxueba/ask/18747001-18750000/18749367/2016071617014226431.jpg' />（）<img src='https://img2.soutiyun.com/shangxueba/ask/18747001-18750000/18749367/2016071617014996704.jpg' /> A．A B． B C． C D． D

<img src='https://img2.soutiyun.com/ask/2020-11-13/974119637589642.png' />

<img src='https://img2.soutiyun.com/ask/2020-08-06/965551122439113.png' />

将下列函数展开成(x-3)的幕级数： <img src='https://img2.soutiyun.com/ask/2020-08-12/966088220653753.png' />

将函数<img src='https://img2.soutiyun.com/ask/2020-12-14/97678986011847.png' />展开成简单幂级数,并指出它收敛的区间.

求幂级数<img src='https://img2.soutiyun.com/ask/2020-12-11/976533602465549.png' />的收敛域及和函数,并求常数项级数<img src='https://img2.soutiyun.com/ask/2020-12-11/976533633968351.png' />的和.

将下列各周期函数f(x)展开成傅里叶级数，如果f(x)在一个周期的表达式为： <img src='https://img2.soutiyun.com/ask/2021-01-14/979481711875738.jpg' />

将下列函数展成麦克劳林级数(可用已知的展开公式): <img src='https://img2.soutiyun.com/ask/2020-11-13/974119543727273.png' />

<img src='https://img2.soutiyun.com/ask/2020-08-21/966869110386338.png' />

将函数f(x)=x(x-π)展开成以2π为周期的傅里叶级数,并回答: (I)级数在点x=±π和x=2π分别收敛于何值？(II)<img src='https://img2.soutiyun.com/ask/2021-01-11/979241771846486.png' />

将函数<img src='https://img2.soutiyun.com/ask/2020-08-10/96591628820966.png' />展开成关于x-1的泰勒级数。