find, in the expansion (1+1/x)^2 (2-x)^7
a) the constant term,and b)the coefficient of x
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2008-10-10 6:03 am
回答 (1)
2008-10-10 8:13 am
✔ 最佳答案
The answer is as follows:圖片參考：http://i277.photobucket.com/albums/kk75/uncle_michael/20081009_mat_1-1.jpg?t=1223568762
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