已知向量
,
.
(1)当
时,求
的值;
(2)设函数
,已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab62db3c5a8352f2db4ba87d99f0bebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7cf998d916e8c9cabc1841d89abf1e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0dc2237408b01132ddf094247e35a3.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172686b90529af2ffad9aa824645eb93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059f266b0539fd8d8f6ee761c6417a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228cb036f045c2a57cc21e8ed79f19c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
更新时间:2016-12-04 08:08:45
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【推荐1】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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