已知函数
有如下性质:如果常数
,那么该函数在
上是减函数,在
上是增函数.
(1)已知
,利用上述性质,求函数
的值域;
(2)对于(1)中的函数
和函数
,若
,使得
成立,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5e228803048cbc40f6aa7141d3a80d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6ec3300d782e3950dbb66dbd734c5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0081a9f76b3e3d4c697c3c12f7c5724c.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9974d59c1a0c155bfeeb26844c11df80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)对于(1)中的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663dca450c57095e177444db30e4b571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7498add4cb9d2e36c1b5eea3e82c8868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347ac85769012f89d1f9951684e1d7b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2024-06-04 14:25:15
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
.
(1)若
,其中
,若
单调递增,求a的取值范围?
(2)当
时,其中
,求
的最小值
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386fa5814fb9e96de47a2720f3979f19.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5eb738989bde790638895eef0fc1069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7463274ada95842f719256660860108c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a90170d7ef5ff6d1d63517c166f7a9.png)
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐2】悬链线
指的是一种曲线,指两端固定的一条(粗细与质量分布)均匀,柔软(不能伸长)的链条,在重力的作用下所具有的曲线形状,适当选择坐标系后,悬链线的方程是一个双曲余弦函数,其解析式为
,与之对应的函数
称为双曲正弦函数,令
.
(1)判断
的奇偶性和单调性,并说明理由;
(2)若关于x的方程
在
上有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a3ce2f0d176db995be7c9a771dd344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ebc77f161714e1a05b7a10bce9f9fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c5327e5ac13899357a14c4cd68af054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333e2bc74aafdd1775f61702119b3823.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f86611c0b359282b77acac0208b6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f0d71fab2982934bc3b223c159f98d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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解答题-问答题
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适中
(0.65)
【推荐3】已知函数关于x的函数
.
(1)当
时,求
的值域;
(2)若不等式
对
恒成立,求实数m的取值范围;
(3)若关于
的方程
有3个不等实数根,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5748527c15e370dcf4230ad2d0e1b5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69303621c56f67b4ec4e0ac575deb554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/136b448efa0cc1804daee227d56afe5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e7678ed58b9847b64b1a542d6c16528.png)
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【推荐1】已知
,我们定义函数
表示不小于x的最小整数,例如:
,
.
(1)若
,求实数x的取值范围;
(2)求函数
的值域,并求满足
的实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9322dd8f56b5f8d2c667fdf0d4a9f9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7871245c73941aa9cc43ec0f82a00dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083e66f15f0a5b04c323f1e102fe497c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650191ce718e5660ec83029419a507ff.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c4f0e587b3039889cfb2f00af8bd2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c0e0e937249bd71d711bb09fd4b2a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解答题-问答题
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适中
(0.65)
【推荐2】已知集合
是满足下述性质的函数
的全体:存在非零常数
,对于任意的
,都有
成立.
(1)设函数
,试证明:
;
(2)当
时,试说明函数
的一个性质,并加以证明;
(3)若函数
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c37014fb6dcd0aee4f9c89e3c4fcda.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47431a4b13e3ea3cba79a85fd77eabc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd26997a82d0638e76cd0fd3c31a57a2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/314be44ff737e6badd9bb989487bb0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ae7edd0f878f6489b934d05c6f051f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知
是定义在
上的函数,且
,对任意的a,
,都有
,当
时,都有
成立.
(1)解不等式
;
(2)若
对任意的
,
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9da4fdfdddc259dcef9fdd4b826b64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826e907db02eff4c979278b3eee7cc29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e36e45821cc161584ad64043772227a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc53a7e9d0f92baa08039cb7f324dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bea1b1efb1fd043529050ab8869a73.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7a677d6d8a0767e771a51f4af78027.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4d2723dd7ec4727a2f2ad6d77c7b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24aa16b780156e18f12baa2b8ee0f9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539ed85a90ec295155431c5c5b2b0efb.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐2】(1)已知函数
是一次函数,且
,求
的解析式;
(2)若对任意
,都有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdcc8eaeaeb581dbd76fdd3549c70ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5e809271b082327c38e575f74d96e79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知函数
,
分别是定义在
上的偶函数和奇函数,且
.
(1)求
,
的解析式;
(2)设函数
,若对任意的
,总存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac50013d622bdea408ee5321b3174c0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b6d591e3cfa05217b6511fcc9832742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fe0170c72ec97f808c8273f57d76d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff565afbddafe8625ef376d7eb3fa649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe53bb5e833f83c2d8290d195fabf02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-证明题
|
适中
(0.65)
解题方法
【推荐2】已知函数
.
(1)判断
在区间
上的单调性并证明;
(2)令
,对
,
,使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f8070994d102706c653bea8dcd69a66.png)
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327bf2a573aebdc5bcf8650aa87a8f30.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda591d3909af06eabf6b37c65bfe571.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37b826b65c6f857d57464771831b258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55ab9ac6eab14d06ed90c8706da6f9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f12a48eee043f28054666eabd988a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f8070994d102706c653bea8dcd69a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279d654f3f3a6b92d17bc6498ef5466b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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