Bài 1:
Tính tổng: g(n)+g(n-1)+......+g(1)+g(0)+g(-1)+g(-2)+......+g(-n).
Biết g(x)=9x+1/9x+3
Bài 2:
Tìm STN x,y thoả mãn: (2x+1)*(2x+2)*(2x+3)*(2x+4)-5y=11879
Edited by dangthanhnhan, 12-04-2013 - 18:57.
giúp em gấp
Started By dangthanhnhan, 10-04-2013 - 20:49
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