符号
表示不大于x的最大整数(
),例如:
,
,
.
(1)已知方程
的解集为M,方程
的解集为N,直接写出集合M、N;
(2)在(1)的条件下,设集合
,是否存在实数k使得
且
,若存在,请求出实数k的范围;若不存在,请说明理由;
(3)设函数
(
),方程
的两个实根为
和
,且满足
.若函数
在
时的函数值记为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ae4ee70c548e841fd7ceeac3250b5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a6c086cd67c729ec094c21c0d45a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c15f3d64ba357a69efe1d0c36c0d94.png)
(1)已知方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583b10b1050c1de417cf05733d9943f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f70582a9395aec59113e8747b7f8a5.png)
(2)在(1)的条件下,设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8515650079724b6b297689ad2e13cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1744aae300e6de013e882a9ab565d5ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8965c92d1248c68efdc1dcecea46c90c.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16faec6a9498f6d89494a565fd4ab2fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55cc8e31f2dd9f776d4483b8c917a1ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985354e11259c93e6cd249d87091ebe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d8742c296a7949b598114a34c51f69.png)
更新时间:2023-10-11 00:27:16
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解答题-问答题
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适中
(0.65)
名校
【推荐1】设
,
,
(1)当
时,求
的子集的个数;
(2)当
且
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa632a549fbaff5721fc2bb5901d53b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d377e4f06bf53921b7f191e9997377ab.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9aabd59a4d426490f6ae9fb6f324acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b86b0fb7d3a9cffff9727d454aee59e.png)
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您最近一年使用:0次
解答题-问答题
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适中
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名校
解题方法
【推荐2】设函数
.
(1)解关于x的不等式
;
(2)当
,
时,记不等式
的解集为P,集合
.若对于任意正数t,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2fec67c27e234b7e78c0ae71dfdbec.png)
(1)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0edcf7314fbef5f6147f559c3005d60.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731bdc8d2686a05f12a2ba8a7e3b01be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5077b8e9afeb9f2d284427acb13ac84f.png)
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解答题-问答题
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适中
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解题方法
【推荐1】已知
,若线段
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,
两点,且
两点均为
的三等分点.
(1)求
;
(2)定义:设函数
定义在
上,用分割
将区间
任意分割为
个小区间,若存在常数
,使得
,则称函数
在区间
上“准Riemann可积”.设函数
,试判断函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/255f7d5b9789a757be7e6221ebb4eac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b390dd3e61e17492ddf388c3a9f3c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
(2)定义:设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da3290ac74b231c7c114b3ca225be41.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2480f87a11c4cd450bc9454ea7276722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd01b9b621cf9cccd8036f164ba1469d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知函数
.
(1)判断并证明
在
上的单调性;
(2)若存在
,使得
,则称
为函数
的一个不动点.已知该函数有且仅有一个不动点,求实数
的值,并求出该不动点
;
(3)若
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03cf985d289d70c5a8cd794bd7e2aaa.png)
(1)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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(2)若存在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e1b9bada8263a6e874bc3fe69d160f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3368388525e30cb7179909b03184eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-证明题
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适中
(0.65)
【推荐3】已知定义域为
的函数
,若存在实数
,使得对任意
,都存在
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,则称函数
具有性质
.
(1)判断函数
是否具有性质
,说明理由;
(2)若函数
的定义域为D,且具有性质
,求证:“函数
存在零点”是“
”的一个必要不充分条件;
(3)若存在唯一的实数a,使得函数
,
具有性质
,求实数t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbde2170c24819edd47db617810bf47.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ba837ccb2f36f9dcef19706e5a1f27.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2387880727d458702651d699e76d7d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8becbf02ba7e4bf68241153c0bfbbbfd.png)
(3)若存在唯一的实数a,使得函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c80e143804fcfcbbb919fbeb11bc71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbde2170c24819edd47db617810bf47.png)
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