解题方法
1 . 已知球O的半径为4,平面
,
与球面分别相交,得圆C与圆D,AB为圆C与圆D的公共弦,若
,
,则点O到直线AB的距离为______ ,四面体ABCD的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e315d525af44daca685149d7d1a51e.png)
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2024高三·全国·专题练习
2 . 如图在四棱柱
中,侧面
为正方形,侧面
为菱形,
,
、
分别为棱
及
的中点,在侧面
内(包括边界)找到一个点
,使三棱锥
与三棱锥
的体积相等,则点
可以是________ (答案不唯一),若二面角
的大小为
,当
取最大值时,线段
长度的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcfe69b939fd1c271747fe9d37ccdf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545decfe4dd2dcf6f24da7363c1bd023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5e19ebb32d9d2b99e346d1e15c7e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b25f3ea33cc08b1e2a0d9c3a9dccaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b210e908b28eba82d327421313668eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90da0522dd9378bab25de2f560aec563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f8b850284b71991c6987975c346c837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/062ebd1fbe1cd4c5c2081eccce969b0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c10cd9fe2cec68681f6246f23420f2.png)
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3 . 牛顿数列是牛顿利用曲线的切线和数列的极限探求函数
的零点时提出的,在航空航天领域中应用广泛.已知牛顿数列
的递推关系为:
是曲线
在点
处的切线在
轴上的截距,其中
.
(1)若
,并取
,则
的通项公式为__________ ;
(2)若取
,且
为单调递减的等比数列,则
可能为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3002f56900c2924bfd79fc3865b0a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641fec779880f75fa8ee6782f3350402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a582927de6e549053dfec41d5f9008a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60302649eb940748da818199e55da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
(2)若取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6073fc52cd10164c1313dd96069b8d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0816dbd5a00f2a404b272c1521d3c2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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名校
解题方法
4 . 已知
中,
,以AB为一边向外作等边三角形ABD(如图所示),且
.当
时,
的值为______ ,当
时,求
的值为______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/20/4215b0d3-1a97-402b-a11f-27389f24e903.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b0f01044910aa5285a600c1eef2fa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab176715c3ae8e4e2ff80a0a5980f029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d285e611381e448100f126c4d7a9b78.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/20/4215b0d3-1a97-402b-a11f-27389f24e903.png?resizew=185)
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名校
5 . 曲线
在点
处的切线方程为______ ;若当
时,
恒成立,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a055e57ab673eefa580064484efb6f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636289ad84b4a3a51095dd32ca201f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7329ba10212286a83bffb9bb24353423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 已知一个顶点为
,底面中心为
的圆锥的体积为
,该圆锥的顶点
和底面圆周均在球
上.若圆锥的高为3,则球
的半径为______ ;球
的体积的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e95a79288fcb7e47fba4410722e2bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
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解题方法
7 . 在等腰梯形
中,
,若
,则梯形周长的最大值为______ ,梯形面积的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813d14803196f2fc6583b71db3358256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
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8 . 已知数列
满足:
,定义:
表示整数
除以4的余数与整数
除以4的余数相同,例:
.设
,其中
,数列
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f37c41b3d37ebff1242f840b5fe0c0.png)
______ ;满足
的
最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bd1701942436577888033dddab56db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770e90a2561b0d1d2b29a3b79826ce3d.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/e7f6d0719b5ca93d2c769cb1dfde76a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41483f8495363a91ed69f7ca4eb82e48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7399fcd570d1de4057f2059759d18cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f37c41b3d37ebff1242f840b5fe0c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fb38963c8058ddefb44934c83ab6c86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 如图,某数阵满足:每一行从左到右成等差数列,每一列从上到下成公比相同的等比数列,数阵中各项均为正数,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550427147909013f0491fe8a24d9a5d4.png)
______ ;在数列
中的任意
与
两项之间,都插入
个相同的数
,组成数列
,记数列
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4331b9fb70a31f8f02b003eea6054c4e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1a067af2816f1a13833d64ee3850bb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550427147909013f0491fe8a24d9a5d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a464c9bb94ec490bec450e801ba3c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f867d0ca7748f1d788aa81ebaf9bb3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f91e65e0726d85ac43389dc345abda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4167876db9c7f36a1999ae0945f21f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c75f960d4e68b4405a28cae0eaceda1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4331b9fb70a31f8f02b003eea6054c4e.png)
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10 . 数列
称为斐波那契数列,该数列是由意大利数学家莱昂纳多・斐波那契(Leonardo Fibonacci)以兔子繁殖为例子而引入,故又称为“兔子数列”,
满足
,则数55是该数列的第__________ 项;
是斐波那契数列的第__________ 项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f4aeac126a58dc87e0ab50e5f817bed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d1c3528d70957e2f80aecd6d9d2334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4b291192a27a2a49075931fb9bba06.png)
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