| A1B1 |
| A1N |
| 2ax2+x+1 |
| x |
| y2-y1 |
| x2-x1 |
| lnx2-lnx1 |
| x2-x1 |
| A1B1 |
| A1N |
| x2+(λ-1)x1 |
| λ |
| λ(x2-x1) |
| x2+(λ-1)x1 |
| x2 |
| x1 |
| 2ax2+x+1 |
| x |
| 2ax2+x+1 |
| x |
| 1 |
| x |
| 1 |
| x |
| 1 |
| x |
| 1 |
| x |
| y2-y1 |
| x2-x1 |
| lnx2-lnx1 |
| x2-x1 |
| A1B1 |
| A1N |
| x2+(λ-1)x1 |
| λ |
| λ |
| x2+(λ-1)x1 |
| x2+(λ-1)x1 |
| λ |
| λ |
| x2+(λ-1)x1 |
| lnx2-lnx1 |
| x2-x1 |
| a |
| λ |
| a |
| λ |
| λ |
| x2+(λ-1)x1 |
| lnx2-lnx1 |
| x2-x1 |
| λ(x2-x1) |
| x2+(λ-1)x1 |
| x2 |
| x1 |
| x2 |
| x1 |
| λ(x2-x1) |
| x2+(λ-1)x1 |
| x2 |
| x1 |
| λ(t-1) |
| t+(λ-1) |
| λ(t-1) |
| t+(λ-1) |
| -t2+(λ2-2λ+2)t-(λ-1)2 |
| t(t+λ-1)2 |
| (λ-1)2+1 |
| 2 |
| 1 |
| 2 |
| (λ-1)2+1 |
| 2 |
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| 2 |
| π |
| 2 |
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