limit questions (urgent)

👨🏻‍🏫 學術台數學

2011-10-01 6:19 am

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圖片參考：http://imgcld.yimg.com/8/n/HA01097219/o/701109300068413873469210.jpg

please show steps and use methods as simple as possible
thanks

回答 (1)

2011-10-01 6:07 pm

✔ 最佳答案

http://i1090.photobucket.com/albums/i376/Nelson_Yu/int2-33.jpg

圖片參考：http://i1090.photobucket.com/albums/i376/Nelson_Yu/int2-33.jpg

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