三角形ABC内接于以O为圆心,1为半径的圆,且3倍向量AO+4向量OB+5向量OC=0。求向量OA*向量OB,向量OC*向量OB

三角形ABC内接于以O为圆心,1为半径的圆,且3倍向量AO+4向量OB+5向量OC=0。求向量OA*向量OB,向量OC*向量OB,向量OA*向量OC... 三角形ABC内接于以O为圆心,1为半径的圆,且3倍向量AO+4向量OB+5向量OC=0。求向量OA*向量OB,向量OC*向量OB,向量OA*向量OC 展开
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kaugniqd49
2011-01-24
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. . .New Year's Day,commercial indoor playground Equipment, just broke up with girlfriends to accompany shopping, relax. We watched Girlfriends ex-boyfriend all the way has been derailed in the Tongsu acts. As my girlfriends, of course, should accompany her, so she happily put down in the past. Girlfriends in front of her boyfriend two years have been good, feeling has been very stable, has come to the time of marriage. But last month, he was vulgar ex-boyfriend had relations with a friends. My girlfriends did see the kind of things people may not like. Huff to parted.

me as her best friend, to accompany her one day, listening to her tell the good memories, but also help him a little scolding the evil acts of former boyfriend. Both of us fished from the sea floor are nine at night, and may eat a bit more, say walk it, even walked the walk for three hours, both of us come from the Communication University of Xidan. . . . We have also talked the whole trip that topic. Said her ex-boyfriend of the unfeeling and immoral. As girlfriends, of course I will be very pretty, she just bought my new Daphne poor ah. .

separated on the way home with his girlfriend, I think everyone is falling out of love will make you start complaining about the endless, or so people of all lovelorn can release their feelings? Other girlfriends are like this?

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kids playground equipment [Play zone] you must not
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中国移动我咋动82769b1
2011-01-09 · 超过44用户采纳过TA的回答
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费精神把这些题这么打出来不如自己思考,早该好了
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arron2169
2011-01-11 · TA获得超过223个赞
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向量AO还是向量OA?
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