名校
解题方法
1 . 已知函数
,若对于其定义域
中任意给定的实数
,都有
,就称函数
满足性质
.
(1)已知
,判断
是否满足性质
,并说明理由;
(2)若
满足性质
,且定义域为
.
已知
时,
,求函数
的解析式并指出方程
是否有正整数解?请说明理由;
若
在
上单调递增,判定并证明
在
上的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2920db5488d51e8b5d25c5a8aadc12ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68672b2a835adeeaa4d9580d2d9fcc7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e811d5f049f3b6cb9ae6dfe12d3a3f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb9feeffdbbd6eef8b9c8a61aeb3ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ebb716b8aa64cf3a67871232807b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/567a08e70e5a06c70fbad1d3864061a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e731337c844a9ad4ec7fb221528f87c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2dfaa0e63b9c720093ab80e2ed24c9d.png)
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2024-03-04更新
|
148次组卷
|
2卷引用:重庆市万州第一中学2023-2024学年高一下学期入学考试数学试卷
名校
2 . 已知有
个连续正整数元素的有限集合
(
,
),记有序数对
,若对任意
,
,
,
且
,A同时满足下列条件,则称
为
元完备数对.
条件①:
;
条件②:
.
(1)试判断是否存在3元完备数对和4元完备数对,并说明理由;
(2)试证明不存在8元完备数对.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/244a73e2cab2b626e12058164680d7cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6526915197667b48dc2e6c1ff413bcf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ac49ab7c8001c209b8611b9ea40d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a8ca987823fe459fafc1c4fd057d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9458be5eac5e4b7fbd28850e43d96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba54a91d651db38d3a13a461252223e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a205f096c854a2f7cd71255056f9f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9169084fc046cdf9b9831f4030f58217.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f34affbf06b09098b13a5b89c0989fb8.png)
(1)试判断是否存在3元完备数对和4元完备数对,并说明理由;
(2)试证明不存在8元完备数对.
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2024-02-23更新
|
280次组卷
|
2卷引用:重庆市乌江新高考协作体2023-2024学年高一下学期开学学业质量联合调研抽测数学试题
名校
解题方法
3 . 下列说法正确的是( )
A.函数![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.已知函数![]() ![]() ![]() |
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2024-01-20更新
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556次组卷
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2卷引用:重庆市第八中学校2023-2024学年高一下学期开学考试数学试题
名校
解题方法
4 . 已知函数
(
)有最大值为2,且相邻的两条对称轴的距离为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
的解析式,并求其对称轴方程;
(2)将
向右平移
个单位,再将横坐标伸长为原来的
倍,再将纵坐标扩大为原来的25倍,再将其向上平移60个单位,得到
,则可以用函数
模型来模拟某摩天轮的座舱距离地面高度H随时间t(单位:分钟)变化的情况.已知该摩天轮有24个座舱,游客在座舱转到离地面最近的位置进仓,若甲、乙已经坐在a,b两个座舱里,且a,b中间隔了3个座舱,如图所示,在运行一周的过程中,求两人距离地面高度差h关于时间t的函数解析式,并求最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0912273ca8068fe8bba670c8a1258a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4441ad594b4f1ecf4ddfa411f10327c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb17843c51402a1f7cd9b07542597b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e3b61f06b89016d84dac97e1939792b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667c4923ac23ec536f06edc10fb0160d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ad8d8a8a678a8cdea5961968d256c8.png)
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2024-01-18更新
|
545次组卷
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3卷引用:重庆市乌江新高考协作体2023-2024学年高一下学期开学学业质量联合调研抽测数学试题
5 . 定义:如果代数式
(
,
,
,
是常数)与
(
,
,
,
是常数),满足
,
,
,则称这两个代数式
与
互为“同心式”,如,代数式:
的“同心式”为
,下列三个结论:
①若
与
互为“同心式”,则
的值为
;
②当
时,无论
取何值,“同心式”
与
的值始终互为相反数;
③若
、
互为“同心式”,且
是一个完全平方式,则
.
其中,正确的结论有( )个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8393062577c3376b5645dae73827b3fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9efeb4455e30293d412938eeea85d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc74d7e4fa615d30f2b2a7e015e40698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae7c6c2e0772926b35b2672113557d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f79be89b8c6227b68eded6b675546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20eec4c0b16de240e078c91716deafd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b115aa9eb665405381be36b7fc0538d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9783bc5a9ae68ecd7de1c27d371106d2.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/a176f7578b14b6a9870f3adc13a69771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb63b8a79194121c6c08dcbcab3a05c7.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74603d090f4261e2c50e08d6c441f355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4618d7d5657da9ae2c38e0b9701835e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e269e48a9be257b7760ba9d122896cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb93c63747322333be537ab0ba03ac36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
③若
![](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/c5c59c82ef957da631615eae6a1090da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc3578e459f2fd8318a59fbaa00dc76.png)
其中,正确的结论有( )个.
A.0 | B.1 | C.2 | D.3 |
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名校
6 . 如图,曲线表示一只蝴蝶在飞行过程中离地面的高度
随行时间
的变化情况,则这只蝴蝶飞行的最高高度约为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a40420dc952f91a7d333f84771cc7f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecd76012d1b9c5e9fec6221e6e489c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/20/413488f1-4abd-4b45-bfe6-1908b728507f.png?resizew=146)
A.5m | B.7m | C.10m | D.13m |
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名校
7 . 有n个依次排列的整式:第1项是
,用第1项乘以
,所得之积记为
,将第1项加上
得到第2项,再将第2项乘以
得到
,将第2项加上
得到第3项,以此类推;下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/043157f293a6a6fc44a4d67064588ae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b9b544a9e12197bd70f78c0fd84514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f6c21d2418f8e0a6669e1678158433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b9b544a9e12197bd70f78c0fd84514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7e7183e001572b529f8f4636e6e71d.png)
A.第4项为![]() | B.![]() |
C.若第2022项的值为0,则![]() | D.当![]() ![]() |
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8 . 若一个四位数M的个位数字与十位数字的平方和恰好是M去掉个位与十位数字后得到的两位数,则这个四位数M为“勾股和数”.例如:
,
,
是“勾股和数”;又如:
,
,
,
不是“勾股和数”.
(1)判断2022,5055是否是“勾股和数”,并说明理由;
(2)一个“勾股和数”M的千位数字为a,百位数字为b,十位数字为c,个位数字为d,记
,
.当
,
均是整数时,求出所有满足条件的M.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cfdd198e740a231bcba06603673935c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf1700562da03247c301f48c092cd8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e75cb3a33364aad001b71ca9124ec73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2902f5083d831282df11b4661e135b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a795b211e706d8b4c68ec9d45ebf8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c23eaf46e3fb57c0ab4af0f824ed2f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c48d74fd48285654db28ecf6fe732e2.png)
(1)判断2022,5055是否是“勾股和数”,并说明理由;
(2)一个“勾股和数”M的千位数字为a,百位数字为b,十位数字为c,个位数字为d,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e38491098da51623ee447846285a7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac688597bb4e5ec44f4b7d7b93e304f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c274a229d6f58264ddea723c334758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec26ec7cbd1039e98c7c8187034f2ef7.png)
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9 . 在
中,
,
,点
为平面内一点,
(1)如图1,当点
在
边上,且
时,求
的长度
(2)如图2,若
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db827cbb22a564c4dbaa6e1c78c6dae5.png)
(3)如图3,当
时,连接
,将
沿直线
翻折至
平面内得到
,点
、
分别为
、
中点,
为线段
上一动点,连接
,将线段
绕点
顺时针方向旋转90°,得到
,请直接写出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/4f620fc9-aab5-44ce-bcc5-9e320e0872c7.png?resizew=521)
(1)如图1,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda3351b52553f1a5d813689f35a6b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db827cbb22a564c4dbaa6e1c78c6dae5.png)
(3)如图3,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6829c6214e60edbfbf1e31601c6bcb2.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ba1a5faaca77793e2d807612470513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae024d6c350e06b0f716880e8115d4c.png)
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10 . 如图,抛物线
与
轴交于
和
两点,与
轴交于点
,点
是直线
下方的抛物线上一动点.
(1)求抛物线的解析式;
(2)过点
作
直线
于点
,过点
作
轴于点
,交直线
于点
,求
的最大值及此时点
的坐标;
(3)在(2)的条件下,将该抛物
线向左平移3个单位,点
为点
的对应点,平移后的抛物线与
轴交于点
,
为平移后的抛物线的对称轴上任意一点.写出所有使得以
为腰的
是等腰三角形的点
的坐标,并把求其中一个点
的坐标的过程写出来.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc381ec69d507f6f2181df98c3888ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e84f5c91c910aaafc5e74dbfbdf59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f05b013e4b7166cbc87c5a83d6a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/17/ebbac193-4bdb-40c3-b891-09b382f04842.png?resizew=247)
(1)求抛物线的解析式;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce49710609f7bffc36441dc5c2f7c2ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f00d0ff8dd38da17167cf9b789eec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229d2d1230222890c389c3b3f070c16b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)在(2)的条件下,将该抛物
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce2790947716b1cfa9c5e7a65db4093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0023c9e8e0fec24d3aa77d09b2e4e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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