如图所示,
,
,
.
(1)若
,求x与y的关系式.
(2)在(1)的条件下,若
,求x,y的值及四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fd7d87e3b10daf81a9cf455e9c0e81d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522d2f2619757bde75e906921e1c1c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62dc7f7b2eadb3e6b37dae7f953a370.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/b492565c-566b-4ded-bbf3-2eb80258036a.png?resizew=116)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52162f815be5109ea98548ba843d5b61.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc9448c4e9a71c0ec8a1de4904b7bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
更新时间:2023-06-07 09:35:11
|
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】已知向量
,
,
.
(1)若
,求实数
的值;
(2)若
与
的夹角为锐角,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c064a68999e29c393a06a096149d40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87dcace6d05f1654ae9918214421dab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422248575f6b9fd630354d520b8515ce.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bc87ca3afcf3538129dc3053001a42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437dc907211c5934f938d869f6b19e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f167fcb71f7cf9f06b59ed8374d17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐3】已知
,
.
(1)求
;
(2)若
与
平行,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f4dcf415977dea53f52a85b6b82136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c22fb4cb93da0042f4a5573a8429edb3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c20c6f75adecbf7a1785f9a693b23db.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b625b8d3178dd0ea451a80a63082c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d39321b6bdb08c5d23658b52abdb5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
名校
【推荐1】已知
.
(1)若向量
,求
的值;
(2)若向量
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b4175e386fe43c7d978399ba879abf7.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26eeefc4edf0053e9a00ab7d4c350d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dec9da1a84c65b9698c1cd70851dfdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f208cd288e41ca2ba27c6c47d7647da.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】如图,在
中,已知
为线段
上一点,
.
,求实数
,
的值;
(2)若
,
,
,且
与
的夹角为120°,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b461cbe5a345727bc752ef8a063cf7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2d7ec3ab513b8ce3ca2d7bf7b3ad95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0258356f0f4922406b033dee09a89bd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ead6296ed1868fa74da7334f7603dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef869efad86848f52f66fcdae6baab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680b47e9eb79fe5fb05e1df373a8cdd3.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐2】已知向量
,
.
(1)求当
时,求向量
的坐标;
(2)若
,且
,求
的值.
(3)若
,且
,求
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b886d17fe6d4dd4ed9481c9cdeb49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18515948143068d8d652f349508e478.png)
(1)求当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734a6a1d319648bb969845a9159cdba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8827d05338e55f9b60f882d66492ff70.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069da5c624837df29947b7b8bf722097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211ead7b4685ef34e3dc991e533d11c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1614f76ae1b4775ebfe327407512980a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec41eae333bbceddb0da14c824324d1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b6fc7e4e457a179af628d22d7b1dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
您最近一年使用:0次