ln22 |
22 |
ln32 |
32 |
lnn2 |
n2 |
2n2-n-1 |
2(n+1) |
1 |
x |
lnn2 |
n2 |
n2-1 |
n2 |
1 |
n2 |
ln22 |
22 |
ln32 |
32 |
lnn2 |
n2 |
1 |
22 |
1 |
32 |
1 |
n2 |
1 |
22 |
1 |
32 |
1 |
n2 |
1 |
2×3 |
1 |
3×4 |
1 |
n×(n+1) |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
n |
1 |
n+1 |
1 |
2 |
1 |
n+1 |
2n2-n-1 |
2(n+1) |
ln22 |
22 |
ln32 |
32 |
lnn2 |
n2 |
2n2-n-1 |
2(n+1) |
ln(1+x) |
x |
lnx |
x |
1 |
2 |
4x2-7 |
2-x |
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