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| an•an+1 |
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| an-1-an |
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| 1 |
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| 1 |
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| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| an |
| 1 |
| an-1 |
| 1 |
| 2 |
| 1 |
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| 1 |
| a2 |
| 1 |
| a1 |
| 1 |
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| a3 |
| 1 |
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科目:高中數學 來源: 題型:
| x2+a |
| bx-c |
| 1 |
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科目:高中數學 來源: 題型:
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