1 . 已知
,且
,函数
.
(1)记
为数列
的前
项和.证明:当
时,
;
(2)若
,证明:
;
(3)若
有3个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff69be9f14b645d71fe4547677db36de.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48241aafc046ccde27f7d63ae3018161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c98250092857464fbe6cc0707b89ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5a00e9328fe28c7f1f81377e05b044.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950581caec90a28b5fa8f1e81bf21d19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7a75bcd70f6b1a6d02dbb92e964e1b.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 已知数列满足
,
.
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03548afaef0a2539d253710ad1510a8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e191086446263b7bbbd93613577c42.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11bc21cead06fe592999d0d5a4efcf2.png)
您最近一年使用:0次
2024-03-20更新
|
490次组卷
|
2卷引用:山西省临汾市浮山中学校2023-2024学年高二下学期第一次月考数学试卷
解题方法
3 . 如图,直三棱柱的底面是等腰直角三角形,
分别是棱
,
上的点,
.
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51838e395dfc9d9ef597d9e01f46272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d557872d3299577be8c5872ba1ae5b59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
4 . 已知函数
(m是常数).
(1)若
,求函数
的图象在
处的切线的方程;
(2)若
有两个零点
,且
,证明:
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc5fc8feab34af4211b467996fa1536.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eaab9d1ca5157310bbb5f4d6a846956.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d5b159da139b50cde0d087f462aa4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51424610032590891676b5ef0b394557.png)
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5 . 英国数学家泰勒发现的泰勒公式有如下特殊形式:当
在
处的
阶导数都存在时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661a2ffa74a30c0b1c0a0ea0fdc8bb3c.png)
.注:
表示
的2阶导数,即为
的导数,
表示
的
阶导数,该公式也称麦克劳林公式.
(1)根据该公式估算
的值,精确到小数点后两位;
(2)由该公式可得:
.当
时,试比较
与
的大小,并给出证明;
(3)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f1d8cb672db61735be7cbcd3d50bf9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661a2ffa74a30c0b1c0a0ea0fdc8bb3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10acd6d864583617dd3e71240bf0c857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35993bd1db970330494665d925c0be7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)根据该公式估算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f67aace59c071f37a444495678497ef0.png)
(2)由该公式可得:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba15a427babacf319deb9c4dd8d58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea093173f74807332e08bde42f25e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd9f874878e11c3fa25143023e8f95a.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5cf9c12181dd8683944b2b30bf8e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa80dea5928f0be2b39075a434742686.png)
您最近一年使用:0次
2024-03-14更新
|
3292次组卷
|
12卷引用:山西省晋城市第一中学校2023-2024学年高二下学期第二次调研考试数学试题
山西省晋城市第一中学校2023-2024学年高二下学期第二次调研考试数学试题湖北省八市2024届高三下学期3月联考数学试卷江苏省连云港市东海高级中学2023-2024学年高二下学期强化班第一次月考数学试题(已下线)第10题 导数压轴大题归类(2)(高三二轮每日一题)河南省南阳市西峡县第一高级中学2023-2024学年高二下学期第一次月考数学试卷安徽省蚌埠市第二中学2023-2024学年高二下学期3月月巩固检测数学试题江苏省苏州市张家港市沙洲中学2023-2024学年高二下学期3月阶段性测试数学试题广东省东莞市外国语学校2023-2024学年高二下学期第一次阶段性考试(4月)数学试题河南省许昌市禹州市高级中学2024届高三下学期4月月考数学试题吉林省长春市第二中学2023-2024学年高二下学期第一学程考试(4月)数学试题(已下线)压轴题05数列压轴题15题型汇总-1甘肃省兰州市第五十八中学2024届高三第二次高考仿真考试数学试题
6 . 已知定义在
上的函数
满足
,都有
且当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9393fc75283aabe25e4730e4aa04cad.png)
(1)求
;
(2)证明:
为周期函数;
(3)判断并证明
在区间
上的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2671f593186fa00f17ad26eba7b8f3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa9423766b5b9125f2e5bce3e5f9ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04614d0fac9cde995374a43d4323b723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9393fc75283aabe25e4730e4aa04cad.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d85b9d0a99598bbdbaaf58e028fc4d.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
您最近一年使用:0次
名校
7 . 在四棱锥
中,侧面
底面
,底面
为菱形,点
为
的中点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60826ea9ab1f987c560f7df3b71f1233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16acf46d7dab8fdd5ea222edee163bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ab2c14a4cce23c0a82e124227ef10b.png)
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/5647f1d2-efda-49a8-8f12-6c78dff0f186.png?resizew=162)
(1)证明:
平面
;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60826ea9ab1f987c560f7df3b71f1233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16acf46d7dab8fdd5ea222edee163bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ab2c14a4cce23c0a82e124227ef10b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/5647f1d2-efda-49a8-8f12-6c78dff0f186.png?resizew=162)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac0b72906641ed13716cfbce50923282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
为公差不为0的等差数列
的前
项和,且
.
(1)求
的值;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5226b1157bf9469864a0c238d58e65d6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2e6956e0073cef684fef6a16bead0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8dd99dba987abc303cfbdbf9dbab1d.png)
您最近一年使用:0次
2024-03-08更新
|
2280次组卷
|
7卷引用:山西省晋城市第一中学校2023-2024学年高二下学期第二次调研考试数学试题
名校
9 . 已知函数
,且
与
轴相切于坐标原点.
(1)求实数
的值及
的最大值;
(2)证明:当
时,
;
(3)判断关于
的方程
实数根的个数,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e1375088563294adc1b57cb48833bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06d4aa6849bbb8b543a0b361e1ebb0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d541585c3e7895f814e6cb37c57452d.png)
(3)判断关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cf3b13382a1f1dfeb7deebb3f5e925.png)
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2024-03-06更新
|
1210次组卷
|
3卷引用:山西省2024届高三第二次学业质量评价数学试题