[微積] 簡單積分題目

[TVBS2100 (濤歌的節目)]

有四題

第四題卡住

希望求解 感謝

http://imageshack.us/photo/my-images/594/55208407.jpg/

http://imageshack.us/photo/my-images/593/49445663.jpg/

http://imageshack.us/photo/my-images/847/96130923.jpg/

http://imageshack.us/photo/my-images/17/10856236.jpg/

感恩

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