已知正
的顶点A在平面
内,点
,
均在平面
外(位于平面
的同侧),且在平面
上的射影分别为
,
,
,设
的中点为
,则直线
与平面
所成角的正弦值的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c2406b64075988c6b899219eca72e7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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22-23高二下·浙江绍兴·期末 查看更多[4]
浙江省绍兴市2022-2023学年高二下学期期末数学试题(已下线)第10章 空间直线与平面(压轴题专练)-2023-2024学年高二数学单元速记·巧练(沪教版2020必修第三册)(已下线)第16讲 拓展一:立体几何中空间角的问题和点到平面距离问题-【帮课堂】(人教A版2019必修第二册)(已下线)第二章 立体几何中的计算 专题一 空间角 微点4 直线与平面所成角【培优版】
更新时间:2023-06-25 19:03:13
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名校
【推荐1】已知函数
的定义域为
,值域为
,用含
的表达式表示
的最大值记为
,最小值记为
,设
.
(1)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349934fa788a179e0bffd68168a17235.png)
___________ ;
(2)当
时,
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d1270851df0ddc3060f778daac5bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424843950ee17f6f18b5c181c1f6ee34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0338b99cef985925abb9da31dc5dd2d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee96b01fb6a6283ffb47e59a3be627cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6a01a890269959fbc4177130f64a1c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349934fa788a179e0bffd68168a17235.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315a7c9116c9e068f6ec86308f2edbbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56a8653dc316fca3477b666298e7fd22.png)
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填空题-单空题
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解题方法
【推荐1】已知三棱锥
的三条侧棱
两两垂直,其长度分别为
.点
在底面
内的射影为
,点
所对面的面积分别为
.在下列所给的命题中,正确的有_________________ .(请写出所有正确命题的编号)
①三棱锥
外接球的表面积为
;
②
;
③
;
④若三条侧棱与底面所成的角分别为
,则
;
⑤若点
是面
内一个动点,且
与三条侧棱所成的角分别为
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766565857d28617cc4c2a26ecf76ec24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a5bde60e69bb21572ad1c4f40a6874.png)
①三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8995d3243fedbd50127273ae747fe358.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59bf15efd0dfaa39f0ccfdae9d6e5fe9.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d412046121178e3cb45936f1a11648d.png)
④若三条侧棱与底面所成的角分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c543ac748e62e4fee354cdfd38e830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994c1a2ad1b47ef977df89c6bd1cf0c2.png)
⑤若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae5e7686967917e4f1bd56c45870513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394519cbafbb9832d116c09067e06a17.png)
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【推荐2】已知三棱锥
的各棱长均相等,点E在棱
上,且
,动点Q在棱
上,设直线
与平面
所成角为
,则
的最大值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4148817c0a463417ec02769a7abc5913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15febfda66e733f14aa7115ed4343a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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