|a+b b c |
| a b+c c | = 4abc
| a b c+a|
高中的,爆開大家都會,
想請問有快的諸如行提列灌那種不好想到的方法嗎?
謝謝
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※ 編輯: AAsmer (1.174.208.118), 01/15/2016 01:01:37
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