如图,
且
∥
.
![](https://img.xkw.com/dksih/QBM/2016/11/29/1836136190861312/1826269012656128/STEM/a4a14f365f0d468781d7855ea14a16c3.png?resizew=182)
(1)求
与
间的关系;
(2)若
,求
与
的值及四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93943e66f6fad79438423901daabfcfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd98a891fa65f2fc6688001b03185d0.png)
![](https://img.xkw.com/dksih/QBM/2016/11/29/1836136190861312/1826269012656128/STEM/a4a14f365f0d468781d7855ea14a16c3.png?resizew=182)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2cbe4db1a3ee3f20ec0f571e28a03f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
2016高一·全国·课后作业 查看更多[1]
(已下线)同步君人教A版必修4第二章2.5.1平面几何中的向量方法
更新时间:2017-11-27 15:36:43
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】如图,正方形ABCD的边长为6,E是AB的中点,F是BC边上靠近点B的三等分点,AF与DE交于点M.
与
所成角的余弦值;
(2)设
,求λ的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c3accb1b8a5479439beff4259660e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8c53645db602c72b00b599c2c0ff97.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd73c525a69bf64db2867e570933b95.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知
,
,
.
(1)若
,求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db12e32ec95af7a916cd136fd21afc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99043a7ca7766a45fca34ce0fb59edaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ae470980d6e3b53c65b9d42d1f011c5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7796cec50ed668e457ae5398295533af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e496ee7d3685671a6c9dcf1821c58c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/483053da66e1cdcd910c4b24f72bfd2b.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知三角形ABC的三个顶点均在椭圆
上,且点A是椭圆短轴的一个端点(点A在y轴正半轴上).
(1)若三角形ABC的重心是椭圆的右焦点,试求直线BC的方程;
(2)若角A为
,AD垂直BC于D,试求点D的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45bed378a9efa85bfa202d9765666f83.png)
(1)若三角形ABC的重心是椭圆的右焦点,试求直线BC的方程;
(2)若角A为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1508f3ca7797b21ee388b56410103c95.png)
您最近一年使用:0次
解答题
|
适中
(0.65)
【推荐2】已知平面直角坐标系中,点
为原点,
.
(I)求
的坐标及
;
(Ⅱ)设
为单位向量,且
,求
的坐标
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5f5a1f83f1395b7d41c98792a0140.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2743c965e63b856f45c9e581fcf719.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56eda4bb8604c18d0016a4377d05435a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330fdba8b796a0f82c6bc1a725c2ce2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56eda4bb8604c18d0016a4377d05435a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,在正
中,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3067489056d4a526237008d2c37cfa2d.png)
.
![](https://img.xkw.com/dksih/QBM/2020/3/1/2410324749246464/2412111878127616/STEM/e75ec957b229418180cbd693fb3b6b35.png?resizew=159)
(1)试用
,
表示
;
(2)若
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3067489056d4a526237008d2c37cfa2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617862903624b7f6e2629f9472e56c2f.png)
![](https://img.xkw.com/dksih/QBM/2020/3/1/2410324749246464/2412111878127616/STEM/e75ec957b229418180cbd693fb3b6b35.png?resizew=159)
(1)试用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fe2d802f2b37e7db198c5a3c1df9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b680f91c4a693cc9ab2c23f2e9114ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1395fa3420959a18d91b324adc622116.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3129ddd2ea97fd010b9e0b644225da8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e138b826c138b72116c62323d0662e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3bf52970003ff449b5b16173190822.png)
您最近一年使用:0次