如图,在矩形OACB中,E和F分别是边AC和BC上的点,满足AC=3AE,BC=3BF,若
,其中λ,μ∈R,求λ,μ的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dccb2d20b6f48406fbff8c9508de6476.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/9b626bd1-0a3d-47b1-ad4e-ea94bb5bb4d2.png?resizew=148)
20-21高一·全国·课后作业 查看更多[2]
(已下线)6.3.1 平面向量基本定理(分层练习)-2020-2021学年高一数学新教材配套练习(人教A版2019必修第二册)山西省怀仁市大地学校2020-2021学年高一下学期第三次月考数学试题
更新时间:2021-03-12 09:38:52
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【知识点】 利用平面向量基本定理求参数
相似题推荐
解答题-问答题
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(0.85)
【推荐1】如图,在平行四边形
中,
,
,
,
与
的夹角为
.
![](https://img.xkw.com/dksih/QBM/2019/5/7/2198552019968000/2198733530505216/STEM/49b74bbfd46541e5b017689b0237e32d.png?resizew=190)
(1)若
,求
、
的值;
(2)求
的值;
(3)求
与
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6b76b84f59139b6b11f010498b2bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defad6a6cfa5b7909fba1ebca5f67d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39578629334c22d60ee27f176e7dbff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd98a891fa65f2fc6688001b03185d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://img.xkw.com/dksih/QBM/2019/5/7/2198552019968000/2198733530505216/STEM/49b74bbfd46541e5b017689b0237e32d.png?resizew=190)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63104f80571dbeaf95ce925e9cbaafe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3728d1c17bd92866025193c752121a7.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f90e16e18b1e88ebb1ab811d06be76.png)
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解答题-问答题
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较易
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解题方法
【推荐2】已知四边形ABCD为平行四边形,
.
(1)求平行四边形ABCD的面积;
(2)设点P满足
,点Q为线段AP上一点,若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e326522e5a5f10e939ed9ee164d50c2.png)
(1)求平行四边形ABCD的面积;
(2)设点P满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eef53cd73eb4a628ca6a95517131b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bcd6acd78fc389ca2fe03c9006e4d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解答题-证明题
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【推荐3】如图,在平行四边形
中,F是
的中点,
与
交于点E,求证:E为线段
的一个三等分点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/2020/2/11/2396765510393856/2396810550444032/STEM/39fcc5c0b9cc49708206a85fc6346253.png?resizew=308)
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