1 . 在平面上,设
是三角形ABC三条边上的高.P为三角形内任一点,P到相应三边的距离分别为
,我们可以得到结论:
类比到空间中的四面体
内任一点p, 其中
为四面体四个面上的高,
为p点到四个面的距离,我们可以得到类似结论为 __________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689caf01f70a321425b3e2679bececc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad742f2ebdedd931d9565c7de338f81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d5a3fe8baa1865b26e21543aa4b9f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11dae9935c7f52054fabfd8e3ac8caac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c00854600ba0f7abd13bd3fb0694cf.png)
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12-13高三上·浙江宁波·期中
2 . 在圆中有结论:如图所示,“AB是圆O的直径,直线AC,BD是圆O过A,B的切线,P是圆O上任意一点,CD是过P的切线,则有PO2=PC·PD”.类比到椭圆:“AB是椭圆的长轴,直线AC,BD是椭圆过A,B的切线,P是椭圆上任意一点,CD是过P的切线,则有____ .”
![](https://img.xkw.com/dksih/QBM/2012/1/12/1570686276968448/1570686282268672/STEM/fabad03589be4d9aace6ff67623f31ea.png?resizew=322)
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11-12高三上·山东聊城·期末
3 . 若等差数列
的首项为
,公差为
,前n项的和为
,则数列
为等差数列,且通项为
.类似地,请完成下列命题:若各项均为正数的等比数列
的首项为
,公比为
,前
项的积为
,则数列___________________________ .
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/c4136735cec941f28717d339f2d05258.png?resizew=29)
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/830344016ab34c62b5cddecca9b7e7cf.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/cfd7885c38a348d88d44a90b61a8208f.png?resizew=14)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/650d5deb90eb490ab3b3aa1c1db56e88.png?resizew=34)
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/586f92baa47b4e0fae8f7f919f94f8e1.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/d61f88bac52e4e1594faef4f798f74e6.png?resizew=29)
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/f53bb9c7fe4342c3b3eaa26fbf552697.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/da7b39cc53b9481ebb36c71e86bf63b3.png?resizew=12)
![](https://img.xkw.com/dksih/QBM/2012/2/9/1570726787948544/1570726793150464/STEM/23830851927a40b2aba605e8d5eafa1b.png?resizew=12)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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4 . 在技术工程上常用双曲正弦函数
和双曲余弦函数
,而这两个函数与我们学过的正弦函数和余弦函数有类似的性质,如关于正、余弦函数有
,而双曲正、余弦函数也满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fff725b0c4235cdc009598ed0372dd1.png)
.请你运用类比的方法另外写一个双曲正、余弦函数满足的关系式 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d31ea8f333397263e1bdb22d93c39c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11640aa55b1c025f200a98ed005b7bef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44dbd4f8f70e572a6d4b5c7df6733c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fff725b0c4235cdc009598ed0372dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a5b7b813fffa16d02aabab7c8e53c0.png)
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10-11高二下·浙江温州·期末
5 . 在平面三角形中,若
的三边长为
,其内切圆半径为
,有结论:
的面积
,类比该结论,则在空间四面体
中,若四个面的面积分别为
,其内切球半径为
,则有相应结论:____ ______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7ed36e1667dd060c7898f37fce2a722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765def622d9ab7d1eb806ed0f8ebe2fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
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10-11高二下·浙江宁波·期中
6 . 已知命题:“若数列{an}为等差数列,且am=a,an=b(m<n,m,n∈N*),则am+n
”.现已知数列{bn}(bn>0,n∈N*)为等比数列,且bm=a,bn=b(m<n,m,n∈N*),若类比上述结论,则可得到bm+n= .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a97c0fd7a52f261a7786af17c7bb5f4.png)
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10-11高二下·浙江杭州·期中
7 . 在平面上,设
是三角形
三条边上的高.P为三角形内任一点,P到相应三边的距离分别为
,我们可以得到结论:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d5a3fe8baa1865b26e21543aa4b9f8.png)
试通过类比,写出在空间中的类似结论____________________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689caf01f70a321425b3e2679bececc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad742f2ebdedd931d9565c7de338f81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d5a3fe8baa1865b26e21543aa4b9f8.png)
试通过类比,写出在空间中的类似结论
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10-11高三·浙江温州·阶段练习
8 . 已知等差数列有一性质:若
是等差数列,则通项为
的数列
也是等差数列,类似上述命题,相应的等比数列有性质:若
是等比数列
,则通项为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414187fca31df508dbf88d7f2bb83662.png)
____________ 的数列
也是等比数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f3c9bd614b77999eb7b5ae27ad1f6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3f3a190bd87046e404e2502ba8c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414187fca31df508dbf88d7f2bb83662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
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10-11高三上·浙江绍兴·阶段练习
名校
9 . 计算
,可以采用以下方法:
构造等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9b00bba9b11fba5a137412e9886f2d.png)
,两边对x求导,
得
,
在上式中令
,得
.类比上述计算方法,计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a705beb8c304f43ace696f2a7aa814.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c07e61cdd45d468ae7dc896b9728ce.png)
构造等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9b00bba9b11fba5a137412e9886f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7addd583c589844f72ab47d68001d1d4.png)
得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d83287631ccdf6099a87830ae559e43.png)
在上式中令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2642d6aca84e463b2d2d5dc71e5f351c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a705beb8c304f43ace696f2a7aa814.png)
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2016-11-30更新
|
1972次组卷
|
11卷引用:2011届浙江省诸暨中学高三12月月考数学理卷
(已下线)2011届浙江省诸暨中学高三12月月考数学理卷浙江省宁波市余姚中学2018-2019学年高二下学期期中数学试题(已下线)2011届河北省冀州中学高三一轮检测复习数学理卷(已下线)2013-2014学年河北唐山一中高二下学期期末考试理科数学试卷2015届江西省上饶市重点中学高三六校第二次联考理科数学试卷2014-2015学年河南实验中学高二下学期期中理科数学试卷2015-2016学年辽宁省鞍山一中高二下期中理科数学试卷河南省南阳市第一中学校2019-2020学年高二下学期第二次月考(5月)数学(理)试题陕西省宝鸡市渭滨区2021届高三下学期适应性训练(一)理科数学试题人教A版(2019) 选修第三册 突围者 第六章 易错疑难集训(二)人教A版(2019) 选修第三册 实战演练 第六章 易错疑难突破专练
10 . 若对任意
有唯一确定的
与之对应,则称
为关于
的二元函数.定义:同时满足下列性质的二元函数
为关于实数
的广义“距离”:
(Ⅰ)非负性:
;
(Ⅱ)对称性:
;
(Ⅲ)三角形不等式:
对任意的实数
均成立.
给出下列二元函数:
①
;②
;③
;④.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5cb6d1bff8087a07bf91ed7d07f4578.png)
则其中能够成为关于
的广义“距离”的函数编号是______.(写出所有真命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a6509e245418a878f2eeb66df51013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72df651e67c045ea5d886abef4c2165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72df651e67c045ea5d886abef4c2165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72df651e67c045ea5d886abef4c2165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
(Ⅰ)非负性:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabfb65d3e9f7c4cd33d6f1886eba759.png)
(Ⅱ)对称性:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73292fc1b2cc9dd0022cd56ab8d43c14.png)
(Ⅲ)三角形不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9d50ca05482cfb50a8ae56f47cfafe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
给出下列二元函数:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684f9874fd0c21116ee7e1e59f6b43f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e7b52c8248f2534dadc7c0ea8f5c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28ef674508ca9d7ce117b5201b1299a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5cb6d1bff8087a07bf91ed7d07f4578.png)
则其中能够成为关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
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