解题方法
1 . 中国文化中的太极八卦图蕴含了现代哲学中的矛盾对立统一规律,如图1是八卦模型图,其平面图形记为图2中的正八边形
,其中
,若点P是其内部任意一点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17d4a6cf11cda87b3dfafaecdec683f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52705567101a48893de582656ef41527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b8d017e422f158fe09ed9c867ecfe7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 已知数列
的前n项和
满足
,
.
(1)求
的通项公式;
(2)若
表示不超过x的最大整数,如
,求
的值;
(3)设
,
,问是否存在正整数m,使得对任意正整数n均有
恒成立?若存在,求出m的最大值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5211cd2b4ebcdaad8d73cf999b275475.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3406792cf683de07aa4371168ad65226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa192e136584c2abab136070a430b9e1.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0ea9bbe51ee5a78c22ad18807ecf59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae9df8b3c69acd594e155714263335a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b71732f5f5fb0f70fbccc918948608.png)
您最近一年使用:0次
解题方法
3 . 已知集合
(其中
是虚数单位)
,定义:
,
.
(1)计算
的值;
(2)记
,若
,且满足
,求
的最大值,并写出一组符合题意的
、
;
(3)若
,且满足
,
,记
,求证:当
时,函数
必存在唯一的零点
,且当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531f55c9de4647282bc0424a81f4fd25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ddb621d78a738eba6ebafecbbd7d06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47aa3fcf666d1169ceca5e1e720b926e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccc73232efc9d641adcbae21035944.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0ff8b406a295a58f4fbb36b4c292fa.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be674fcbd2fd1a608fd4a9705c70db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20e7c6170cd75c5a40d7e695eda15e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e95d018246b699601d127e79ec46131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f82089a3186fdffaa2535faebd3d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b54286fe72b8305272c36c0a3a8d2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f7d480cfc89b872404666083e62db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546ababc482b51df95c4aba05ee18c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d828db2a08e2a1da164a0012cc6627a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661249bf6499017f9e5e03db3fcd93d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d5ec74c81f7d02f273f7eecefaf9a7.png)
您最近一年使用:0次
解题方法
4 .
中,
,当
时,
的最小值为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6060d9a82ed5405a1ea8cd824448b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3ede869e508a8c8bda34a16782f863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9baf78638bf6a9798800efc59248d92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c54fccc669a643c76daccc13562e265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
您最近一年使用:0次
5 . 在2023年杭州亚运会最后两个竞技项目男女马拉松比赛中,中国选手何杰以2小时13分02秒夺得男子组冠军,这是中国队亚运史上首枚男子马拉松金牌.人类长跑运动一般分为两个阶段,第一阶段为前1小时的稳定阶段,第二阶段为疲劳阶段.小明想通过数学建模的方式研究运动员的运动时长与其剩余体力的关系.通过查找资料,小明得知:一位60kg的复健马拉松运动员进行4小时长跑训练,稳定阶段平均速度为30km/h,该阶段每千克体重消耗体力
(
表示该阶段所用时间),疲劳阶段由于体力消耗过大,在原有基础上随时间变大,速度降低,比例系数为
.同时,疲劳阶段速度降低,体力得到一定恢复,该阶段每千克体重消耗体力
,(
表示该阶段所用时间).同时,根据比赛现场的环境,其他运动员的平均配速,以及比赛策略等各方面因素,产生上下5%~10%的速度浮动,其对于运动员的体力影响也更为复杂.已知该运动员初始体力为
,请帮助小明补充完善数学建模的过程:
(1)对于数学建模,我们需要给出合理假设.
假设一:假设该运动员稳定阶段作速度为
的匀速运动;疲劳阶段做
的减速运动
假设二:_________________
(2)提出问题一:该运动员剩余体力Q关于时间t有何关系?请写出函数
;
提出问题二:该运动员在4小时内何时体力达到最低值,最低值为多少?
(3)总结运用:请根据以上计算结论,给出一定的实际建议.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f0ede408390464cffb0308ce938f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c7eb49a823f757461cd5260757b088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff35e4e3cdc188643c46265591575c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166636b1f3567f864d7321534afed858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd84a8f95166367063218ee03ffd5a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71dba305f8b63d590f0233275eaa3f10.png)
(1)对于数学建模,我们需要给出合理假设.
假设一:假设该运动员稳定阶段作速度为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ee1c3f44dc7187d75effa7133fa678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0f7cb632d784a4c00b291cadab83f8d.png)
假设二:_________________
(2)提出问题一:该运动员剩余体力Q关于时间t有何关系?请写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2feeb7462a45a01b9b9530248604063e.png)
提出问题二:该运动员在4小时内何时体力达到最低值,最低值为多少?
(3)总结运用:请根据以上计算结论,给出一定的实际建议.
您最近一年使用:0次
名校
解题方法
6 . 设集合
,则集合
的元素个数为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef227996d16320e5b48d244ef58cfa47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.1012 | B.1013 | C.2024 | D.2025 |
您最近一年使用:0次
7 . 已知函数
,
(1)若
,函数
在区间
上单调递增,求
的取值范围;
(2)若
,
,求函数
在
上的值域;
(3)若
,函数
在
内没有对称轴,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91d58ebc68f8481976fdcbf3535c4527.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/590e165e407098fcac9f871beb047dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a908cff3963ed5281930402c853b0b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dcee772e6187ac31d7f8d69b0487000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d47dbed3333b180fce58a6d9e440f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d47dbed3333b180fce58a6d9e440f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
名校
解题方法
8 . 在
中,
,
,
.点
为
所在平面上一点,满足
(
、
且
).
(1)若
,用
,
表示
;
(2)若点
为
的外心,求
、
的值;
(3)若点
在
的角平分线上,当
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d81d732204a3c2384a27606f858677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec7ea9a9bf46fe5dfe7bdb028289bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3276b5e12396fc4753eb3f8254f9fa68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d100f6eb4bfc0b0191c12d5ab35d0d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e03698c9b972ce8c2a569195d00d0312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbaeae7045ad94158cdf5ae97073bc17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34bf00aeba15bce2cdee8ab487388dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ce17f8f08bc11bd78885c80223466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21306b0138363c1cb99ee8c1ecc5a486.png)
您最近一年使用:0次
名校
9 . 如图,点
是
重心,
、
分别是边
、
上的动点,且
、
、
三点共线.
,将
用
、
、
表示;
(2)设
,
,问:
是否是定值?若是,求出该定值;若不是,请说明理由;
(3)在(2)的条件下,记
与
的面积分别为
、
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b3488f90ce6ca9c1d0d8d8a8168e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4b9dda541ca792577227f3014ddc6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91174b2336306191ba275a87864172b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4731335d26e45bf7041b36c5f0a1121d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d098ac2229ff7bb4ee0848f768c53896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b6987d9d311905b9dd7aeaddab745d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f0b84ee4ed90face0993d4f4dda379.png)
(3)在(2)的条件下,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a093d690c27c7e19a52264511d6f87.png)
您最近一年使用:0次
名校
解题方法
10 . 设常数
,
.若函数
在区间
上恰有2024个零点,则所有可能的正整数n的值组成的集合为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171849cbf36955fcdad36feaf1cb5f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c07c496500d66cbd74e1070e1c7c1d5.png)
您最近一年使用:0次