He posted the same problem in this forum in early 2010
He knew how to solve the problem.
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hehe...Here is the link. I am lucky on this:)
-nj_guy-
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11/15/2011 postreply
12:17:12
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wow!你行啊!你这水平俺媳妇有没有受点益?
--子女教育--
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11/15/2011 postreply
12:19:43
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BeLe solved that problem too...
-nj_guy-
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11/15/2011 postreply
12:22:27
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你们俩都是牛人!所以那天
--子女教育--
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11/15/2011 postreply
12:27:46
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牛人们,请问:用Law of sine或cosine 怎样做?
-xyz-
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11/15/2011 postreply
13:58:56