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2Â¥: Originally posted by feixiaolin at 2013-12-05 22:14:23
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lypku

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2Â¥: Originally posted by feixiaolin at 2013-12-05 22:14:23
1½×£º(-sinx+cosx)/(cosx+sinx)=1-2sinx/(cosx+sinx)
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feixiaolin

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4Â¥: Originally posted by lypku at 2013-12-05 22:35:59
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lypku

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5Â¥: Originally posted by feixiaolin at 2013-12-05 22:37:30
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