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| 送交者: 零加一中 2020月03月17日07:45:36 於 [靈機一動] 發送悄悄話 |
| 回 答: 趣味的數學-279 由 gugeren 於 2020-03-12 01:28:15 |
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We only need to know BC=3 and AB=6. This way we find two solutions. Other conditions limit you to one of them. |
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