1 . 点
到直线
的距离公式为
,通过类比的方法,可求得:在空间中,点
到平面
的距离为___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/889f9d91b5e26d27b2175a5c73d2ef32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd079cb94235bf5a037fd4998e166e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e847ef080b2413067335aff03d91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a76eb2bafb3aee4d672f162ac23eb964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ddc7cfab222fe77baddbd1c8ede735.png)
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2 . 在圆中:半径为
的圆的内接矩形中,以正方形的面积最大,最大值为
.类比到球中:半径为
的球的内接长方体中,以正方体的体积最大,最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1909ed10d14c846062edde673f2b0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
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3 . 平面上画
条直线,且满足任何
条直线都相交,任何
条直线不共点,则这
条直线将平面分成__________ 个部分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2018-07-02更新
|
391次组卷
|
3卷引用:江苏省无锡市2017~2018学年第二学期高二数学(文)期末试卷
4 . 观察下列等式:
![](https://img.xkw.com/dksih/QBM/2018/6/29/1977629448601600/1979206597255168/STEM/427465afb8b644f89f3b851e1ade6db2.png?resizew=307)
请你归纳出一般性结论______ .
![](https://img.xkw.com/dksih/QBM/2018/6/29/1977629448601600/1979206597255168/STEM/427465afb8b644f89f3b851e1ade6db2.png?resizew=307)
请你归纳出一般性结论
您最近一年使用:0次
5 . 对于自然数方幂和
(
,
),
,
,求和方法如下:
23﹣13=3+3+1,
33﹣23=3×22+3×2+1,
……
(n+1)3﹣n 3=3n2+3n+1,
将上面各式左右两边分别,就会有(n+1)3﹣13=
+
+n,解得
=
n(n+1)(2n+1),类比以上过程可以求得
,A,B,C,D,E,F
R且与n无关,则A+F的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81ccc66039eb2088ccbfdc1ff20b33c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b6d151d3f864bae873987f6db9327a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327fc051696534ffc1dc2f36d7678bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65645ba9bf81621cbbfc905cd9598164.png)
23﹣13=3+3+1,
33﹣23=3×22+3×2+1,
……
(n+1)3﹣n 3=3n2+3n+1,
将上面各式左右两边分别,就会有(n+1)3﹣13=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9ae6f56048d7b4a25bb06f55ffd8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81179c0dc506920d460a2a7f22db4e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6965bacc53a7e5dec16cefe50123279b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9155cba3d66c844cf9fbb74b81b728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
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6 . 已知
,
是双曲线
上关于原点对称的两点,点
是该双曲线上的任意一点.若直线
,
的斜率都存在,则
的值为定值.试类比上述双曲线的性质,得到椭圆
的一个类似性质为:设
,
是椭圆
上关于原点对称的两点,点
是椭圆上的任意一点.若直线
,
的斜率都存在,则
的值为定值,该定值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5702feefd657c2987d3fe5d9884f2d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5702feefd657c2987d3fe5d9884f2d0.png)
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7 . 对于自然数方幂和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af55ba3abae15944eabc13e775008b3c.png)
,
,
,求和方法如下:
,
,
…
,
将上面各式左右两边分别相加,就会有
,解得
,类比以上过程可以求得
,
且与
无关,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af55ba3abae15944eabc13e775008b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e195c6d4bc7767f2d9b93d6870469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327fc051696534ffc1dc2f36d7678bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3864438300f63b6ad307d3472855b20e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed924f59f847c4d70585d157995ed27f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae1feea42d8842952b1e263239b3971.png)
…
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/840f1c513febbd05db50ef86168b7f3f.png)
将上面各式左右两边分别相加,就会有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0423bd93e59bbe7d9853ad9c799de7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5546dc629174fdac4cbb986a17f8294f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e526bc24839834c391d9f02a08cbbcd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55509f42a5a441e99ce5f6588c70796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950867b34375c0c24128a4050c9d2e5a.png)
您最近一年使用:0次
名校
8 . 观察以下3个等式:
,
,
,
(1)照以上式子规律,猜想第
个等式(
);
(2)用数学归纳法证明上述所猜想的第
个等式成立(
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50086dbfeae56333ce8863b59cb3aa07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4ba999165c5d5cb64b913580314bd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a4bed6c4709b97605bed530ffa84f2.png)
(1)照以上式子规律,猜想第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
(2)用数学归纳法证明上述所猜想的第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
您最近一年使用:0次
2017-10-14更新
|
970次组卷
|
2卷引用:2016-2017盐城市第一中学高二上期末理科数学试题
名校
9 . 观察下列各式:(1)
,(2)
,(3)
,……,根据以上事
实,由归纳推理可得:若定义在
上的偶函数
的导函数为
,则
=____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39facae7f1382f982371ca8e14789f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9ec545c157186997a499e740cc5ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6332a7b9a1995b4b0ae1bd582b9bcb3f.png)
实,由归纳推理可得:若定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6181ea7339144345677568a7fd485f84.png)
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12-13高二下·广东·期中
名校
10 . 给出下列等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82625bcb9f181ac67126052f862b4428.png)
由以上等式可推出一个一般结论:
对于
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ae5c794a3dc5068262bbe709e4de11.png)
__________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82625bcb9f181ac67126052f862b4428.png)
由以上等式可推出一个一般结论:
对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ae5c794a3dc5068262bbe709e4de11.png)
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2018-10-31更新
|
483次组卷
|
11卷引用:江苏省连云港市2018—2019学年第二学期期末高二数学(文科)试题
江苏省连云港市2018—2019学年第二学期期末高二数学(文科)试题江苏省盐城市伍佑中学2018-2019学年高二上学期期末数学(文)试题(已下线)2012-2013学年广东省执信中学高二下学期期中考试文科数学试卷(已下线)2013届陕西省宝鸡中学高三高考模拟考试(八)理科数学试卷山西省应县一中2016-2017学年高二下学期3月月考数学(理)试题【全国市级联考】河北省遵化市2017-2018学年高二下学期期中考试数学文科试题【校级联考】黑龙江省哈尔滨师范大学青冈实验中学校2017-2018学年高二下学期期中考试数学(文)试题(已下线)2018年12月15日 《每日一题》一轮复习【理】-周末培优(已下线)2018年12月15日 《每日一题》一轮复习【文】-周末培优安徽省安庆市怀宁县第二中学2018-2019学年高三上学期第三次月考数学(文)试题安徽省六安中学2019-2020学年高二下学期期中数学(文)试题