解题方法
1 . 如图,在底面为矩形的四棱锥
中,
底面
,
为棱
上一点,且
,
以
为坐标原点,
的方向为
轴的正方向,建立如图所示的空间直角坐标系.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/12783d5c-ab43-4ecb-a9db-6e6e927a1699.png?resizew=173)
(1)写出
,
,
,
四点的坐标![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(2)求
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db807b09cc550f476b3f8fa0c6a14425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8715f8038c86e138e9a7f57868f1299c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e773bfc45764fd279a64990c98ccd61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/12783d5c-ab43-4ecb-a9db-6e6e927a1699.png?resizew=173)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa7e366a255f5b3f45e4d7c0cf34486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894181d9611539ed340e278adaaf8ab1.png)
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2022-09-29更新
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6卷引用:山东省2022-2023学年高二10月联合调考数学试题A