1 . 我们知道:在平面内,点
到直线
的距离公式为
,通过类比的方法,则:在空间中,点
到平面
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b6e44dd054b54f89e7c237eb1428da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2f6d4652704980120d3d0fbca820a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74541dde57a2910731350d4b3e6354d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d19cac2e8bf65270f9608d7ef011f27.png)
A.7 | B.5 | C.3 | D.![]() |
您最近一年使用:0次
2 . 我们知道:在平面内,点
到直线
的距离公式为
,通过类比的方法,则:在空间中,点
到平面
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b6e44dd054b54f89e7c237eb1428da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2f6d4652704980120d3d0fbca820a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb720217661334ab3a5d8d5a82b2dacf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d19cac2e8bf65270f9608d7ef011f27.png)
您最近一年使用:0次
3 . 观察下列等式,
,
,
,
,根据上述规律,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a15f23efc7db722ad87ee360ef473f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b7665d2244278da84dc45faa6aee42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3607f7acce2d96f68b873a6dbfc764b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9a899d7712fa083a7394274e922b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47859ab307baca07ce3c73bd21c6b7f5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-04-14更新
|
750次组卷
|
7卷引用:河南省驻马店市第一高级中学2021—2022学年高二下学期期中文科数学试题
名校
解题方法
4 . 设长方形的面积为s,其外接圆半径为r,则有
.类比这个结论,设长方体的表面积为S,外接球半径为R,则有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7792e08102dd89a2c5af4cc7f69c6506.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-04-14更新
|
390次组卷
|
5卷引用:河南省驻马店市第一高级中学2021—2022学年高二下学期期中文科数学试题
5 . 观察下列各式:
,
,
,
,……,则下列各数的末四位数字为8125的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94eef5c23ca2c4254152b804ec9243e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff01a0558f409ca533973aff718b2a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae05f3a35308132c0537eae3023bc1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62e1fc63be8817cb1ef30cefc78d5c6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 平面几何中直角三角形勾股定理是我们熟知的内容,即“在
中,
,则
”;在立体几何中类比该性质,在三棱锥
中,若平面PAB,平面PAC,平面PBC两两垂直,记
,
,
,
的面积分别是
,
,
,
,则
,
,
,
关系为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4371a4e0c848f28f263b10c1ee6b61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
![](https://img.xkw.com/dksih/QBM/2020/7/20/2510137436266496/2511289076015104/STEM/f35dbd6e1e4743d39ee3d3e8f447ffd4.png?resizew=189)
您最近一年使用:0次
名校
7 . 有下列一组不等式:
,根据这一规律,若第2020个不等式为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3520f991e9b4cfd8393833186b489325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea49d6f38f60e3233426b7d9358b7ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
您最近一年使用:0次
2020-07-22更新
|
124次组卷
|
3卷引用:河南省驻马店市2019-2020学年高二下学期期末考试数学(文)试题
8 . 已知
中,
,角
,
,
的对边分别为
,
,
,其内切圆半径为
,由
,又
,可得
.类比上述方法可得:三楼锥
中,若
,
平面
,设
的面积为
,
的面积为
,
的面积为
,
的面积为
,则该三棱锥内切球的半径是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc1ba2766874730daaad7d3bb7a8ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc921953dd0006abf1b6d8f2723befb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398b8d069a2677b8cecdc6f9e2dcb117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0e57edff95adb154a01e1c3d041051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8e9ec412ea0355e4e5cd06c60e5fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-06-09更新
|
411次组卷
|
5卷引用:河南省驻马店市2021-2022学年高二下学期期末数学(文科)试题
9 . 有三张卡片,分别写有1和2,1和3,2和3.甲、乙、丙三人各取走一张卡片,甲看了乙的卡片后说:“我与乙的卡片上相同的数字不是2”,乙看了丙的卡片后说:“我与丙的卡片相同的数字不是1”,丙说:“我的卡片上的数字之和不是5”则乙的卡片上的数字是______ .
您最近一年使用:0次
2020-03-26更新
|
120次组卷
|
2卷引用:河南省驻马店市环际大联考“逐梦计划”2021-2022学年高二下学期期中考试数学(文科)试题
10 . 命题“有理数是无限循环小数,整数是有理数,所以整数是无限循环小数”是假命题,推理错误的原因是( )
A.使用了归纳推理 | B.使用了类比推理 |
C.使用了“三段论”,但大前提错误 | D.使用了“三段论”,但小前提错误 |
您最近一年使用:0次
2020-08-18更新
|
159次组卷
|
9卷引用:河南省驻马店市2016-2017学年高二下学期期末考试数学(文)试题
河南省驻马店市2016-2017学年高二下学期期末考试数学(文)试题河南省商丘市九校2016-2017学年高二下学期期末联考数学(理)试题河北省张家口市2016-2017学年高二下学期期末考试文科数学试卷河北省张家口市2016-2017学年高二下学期期末考试理科数学试卷重庆市七校联盟2019-2020学年高二上学期联考数学(理)试题江西省上饶市2019-2020学年高二上学期期末数学(文)试题甘肃省定西市岷县第一中学2019-2020学年高二第二学期开学测试数学(文)试题(已下线)2.1.2 演绎推理(基础练)-2020-2021学年高二数学(理)十分钟同步课堂专练(人教A版选修2-2)(已下线)2.1.2 演绎推理(基础练)-2020-2021学年高二数学(文)十分钟同步课堂专练(人教A版选修1-2)