30楼#
发布于:2012-10-05 17:11
答案
y=-1/2x²+4x-6, s=12 |
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31楼#
发布于:2012-10-06 11:08
额,这个题目嘛.............
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32楼#
发布于:2012-10-06 15:08
不错的题目 虽然有点
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33楼#
发布于:2012-10-06 15:09
题目很典型,虽然有点简单
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34楼#
发布于:2012-10-06 18:12
y=-1/2x^2+4x-6
s=6 |
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35楼#
发布于:2012-10-06 21:07
It's too easy. It's too easy. It's too easy. It's too easy. It's too easy. It's too easy. It's too easy. It's too easy.
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36楼#
发布于:2012-10-06 23:53
(1) y=-½x²-4x-6
(2)6 |
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37楼#
发布于:2012-10-07 11:33
....................................22
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38楼#
发布于:2012-10-07 17:03
1 -½X²+4X-6
2 6 |
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39楼#
发布于:2012-10-07 23:50
我还真不知道呢 ,求答案
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