2018高二上·浙江·学业考试
解题方法
1 . 设函数
,
,
.
(1)已知
在区间
上单调递减,求
的取值范围;
(2)存在实数
,使得当
时,
恒成立,求
的最大值及此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5965ab6b5f60b6b97c1273d3c347e01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bea12f2c2e9e59e73b5ee0566dff9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42f54feac6ed738a868ecd53d3a85a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c835c223c5624fe31b645583e78955f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 设数列
满足:
.
(1)证明:
;
(2)证明:
;
(3)求正整数
,使
最小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e84bc6417c92a002baa73696258b96b.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc2c360ef560331ab40b7d671466450.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a04fdb6b104a8ff82ef567e170fbc2.png)
(3)求正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6364e16dd83b4164f0897e279e40bec0.png)
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解题方法
3 . 已知三棱锥
的所有棱长都相等,若
与平面
所成角等于
,则平面
与平面
所成角的正弦值的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-06-03更新
|
1670次组卷
|
5卷引用:2017年普通高等学校招生全国统一考试(浙江卷)仿真预测卷(七)
2017年普通高等学校招生全国统一考试(浙江卷)仿真预测卷(七)安徽省宣城市2020-2021学年高二上学期期末理科数学试题黑龙江省哈尔滨市第三中学2021-2022学年高二上学期10月月考数学试题安徽省宣城中学2023届高三原创模拟金卷(一)数学试题(已下线)难关必刷01 空间向量的综合应用-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
名校
解题方法
4 . 已知抛物线
,直线
与抛物线
交于
为抛物线
上一点.
(1)若
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(2)已知点
,过点
作直线
分别交曲线
于
,证明:在点
运动过程中,直线
始终过定点,并求出该定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33400b08941f4f9c0ed12b0e0cdff822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a234cf1ad4edfd5553004d5167fff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3835e6398d18d162afebc92cd2ae9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499a1cdf00140d4d3a085502601cce3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237c115d5b39d761e1cbcae031070b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dedd84baa5219a2af415be51947c301.png)
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5 . 设
,
是正整数,满足
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b1b5e71aaf8a19aca95ee74a1c59d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa7bbc7b8dd60e3abc0f62b9913fb57.png)
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解题方法
6 . 已知椭圆
,直线
不过原点
且不平行于坐标轴,
与
有两个交点
,
,线段
的中点为
.证明:
(
)直线
的斜率与
的斜率的乘积为定值
.
(
)若
过点
,延长线段
与
交于点
,当四边形
为平行四边形时,则直线
的斜率
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ce159f327425b6e1cc1334877eb6f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f950f722a326aa7e191828f1373284.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570c8e60ade774f91cf6bfe48a6117c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226c5e4b7d65043ee34efa4b56f210ef.png)
您最近一年使用:0次
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7 . 已知二次函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
(1)若
且
,是否存在实数
,使当
时,
为正数?
(2)若
,
,且方程
有两个不等的实根.证明:必有一实根在
与
之间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844dcd62391165df7695930c744cfe4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98526b536508e9bc90e2934d51b72481.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dec7db763dddc467ab89be90106ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360880b267f405ee5900bcbda6c9576b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9401086c915b877d7b14eb26215f9f73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
您最近一年使用:0次
2019-08-14更新
|
794次组卷
|
2卷引用:浙江省嘉兴市第一中学2017-2018学年高二上学期期中数学试题
8 . 数列
,
中,
为数列
的前
项和,且满足
,
,
.
(1)求
,
的通项公式;
(2)求证:
;
(3)令
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebaf2a2590bb84d646957f913d78f6dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3fb9da400018c820272970b3f95660d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/524efe57272af10632cd01af7fb6b840.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7416a32d2619d72a01847b63ee80a9b4.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe62e27d9f294191ef325ca302b79515.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d350c9b188654333954f21d0d3e95e5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8a297f08ce344485429aa20cf8c38c.png)
您最近一年使用:0次
2018-02-02更新
|
951次组卷
|
3卷引用:浙江省台州市2017-2018学年第一学期期末高三数学试题
解题方法
9 . 已知各项为正的数列
满足:
,
(
).
(1)求
;
(2)证明:
(
);
(3)记数列
的前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135610aed76b3236cdaf3931481556f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0ff8ff5b51d663c040810957242ba9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed529240a883f68f0921e818addeb9c8.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eeb650c5d035f8f67a65788f7c1ae67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0ff8ff5b51d663c040810957242ba9.png)
(3)记数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15c37e6c1c27103628017944193e75e.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/c9f950fedce1e5ead461e7f52b734908.png)
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名校
10 . 已知
中,
,且
的最小值为
,则
=___
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4213d24fcf1ab541128b297d9a40f15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad3fe754c0f4f170e4f0bfb98f73f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de337d21ecd7e19830c14f72fba4ad40.png)
您最近一年使用:0次
2018-03-18更新
|
3843次组卷
|
4卷引用:浙江省台州中学2016-2017学年高一上学期第一次统练数学试题