1 |
1×2 |
1 |
2 |
1 |
2×3 |
1 |
2 |
1 |
3 |
1 |
3×4 |
1 |
3 |
1 |
4 |
1 |
9×10 |
1 |
9 |
1 |
10 |
1 |
1×2 |
1 |
2×3 |
1 |
3×4 |
1 |
9×10 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
9 |
1 |
10 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
9 |
1 |
10 |
1 |
10 |
9 |
10 |
1 |
n(n-1) |
1 |
1×2 |
1 |
2×3 |
1 |
3×4 |
1 |
2010×2011 |
1 |
1×2 |
1 |
2×3 |
1 |
3×4 |
1 |
n(n+1) |
1 |
2×4 |
1 |
4×6 |
1 |
6×8 |
1 |
2012×2014 |
1 |
n(n-1) |
1 |
n-1 |
1 |
n |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
2010 |
1 |
2011 |
1 |
2011 |
2010 |
2011 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
n |
1 |
n+1 |
1 |
n+1 |
n |
n+1 |
1 |
2 |
1 |
2 |
1 |
4 |
1 |
4 |
1 |
6 |
1 |
2012 |
1 |
2014 |
1 |
2 |
1 |
2 |
1 |
2014 |
503 |
2014 |
1 |
n(n-1) |
1 |
n-1 |
1 |
n |
2010 |
2011 |
n |
n+1 |
2 |
3 |
3 |
4 |
5 |
7 |
1 |
5 |
1 |
6 |
3 |
2 |
1 |
2 |
2 |
3 |
4 |
7 |
1 |
2 |
1 |
3 |
2 |
3 |
1 |
2 |
1 |
6 |
x-1 |
2 |
x+2 |
3 |
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