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向量问题

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lrh2006 Posted 2015-11-16 13:26 |Read mode

$K3$K~IB){4$I543GY3_E~04.png$
请教一下，这道题直接从投影角度怎么解？谢谢

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kuing Posted 2015-11-16 13:51

see also forum.php?mod=viewthread&tid=3453

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Author| lrh2006 Posted 2015-11-17 11:32

回复 2# kuing

好的，谢谢kuing,我去看下先

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