名校
解题方法
1 . 定义在
上的奇函数
满足
,当
时,
,设
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339b85cca0100adc23472c143f9a5a89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302ca27757d665a245ea5449968e49de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f97bc1796c160ab600db7d85287ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6465afedc017d0ebdcf3d78a1193ab3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035c2b2dd76b0d9f26253d6a6e326b21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c7336d4974dfbe2a96c5ae83b78d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f37bf1eff1b37697378f1e751be612.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2018-04-26更新
|
1574次组卷
|
4卷引用:天津市9校联考2018届高三4月数学(理科)试题
天津市9校联考2018届高三4月数学(理科)试题(已下线)2019年一轮复习讲练测【新课标版文】专题2.4 函数奇偶性与周期性(测)(已下线)2019年一轮复习讲练测【新课标版理】专题2.4 函数奇偶性与周期性(测)四川省泸县第一中学2023-2024学年高三上学期开学考试数学(文)试题
2 . 已知函数
.
(1)求不等式
的解集;
(2)函数
,若存在
,使得
成立,求实数
的取值范围;
(3)若函数
,讨论函数
的零点个数(直接写出答案,不要求写出解题过程).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974d9aea54bbdc92508998a882e4f9f5.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31b687247b7ca16a7813e3881d18a52.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d92eafe586ba8507634140cc46189de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45745b3b43bcc8c406bac90ce9bcf3d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29f5020d133f458912dc3da22b8127d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a715aa8abbb74229e692aa7f28d00b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df376a283f245976966c89bf1d7ae461.png)
您最近一年使用:0次
3 . 若函数
,函数
有两个零点,则
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c95bf3eed0d606f9de1ae3f230f5dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6b28c29a9e823cf1d6c764323d7e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.0或![]() | B.![]() | C.0 | D.![]() |
您最近一年使用:0次
解题方法
4 . 设函数
的反函数为
,函数
在
上是增函数.
(1)求实数
的最小值;
(2)若
是
的根且
,当
时,函数
的图像与直线
在
上的交点的横坐标为
,
(
),证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92860378096f519a8fb276d07dbfabce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9874bac4ed909a35992f4a45270f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c651c6529ddcef73248e52fb5b5eba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0324fecb070287715e3e8f2322056922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4795505e474a1c45b25e489be74f0618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a7b78ee5bd286be07843d3d6af7533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31cdc61764eef3fbe2dc5fafaa2efb39.png)
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5 . 定义在
上的函数
,
单调递增,
,若对任意
,存在
,使得
成立,则称
是
在
上的“追逐函数”.已知
,下列四个函数:
①
;②
;③
;④
.其中是
在
上的“追逐函数”的有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36794f83a45547529322243901725f70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7673cf2e23d15c4062356f89cb7f259e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208575de4f7422c995dd601c54d264d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3211fdab46b25330ea846208975744.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36794f83a45547529322243901725f70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9a16664ad088899f6437b9637b80b2.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d2564de2bbd4b9d541d677d9e39baa.png)
![](https://img.xkw.com/dksih/QBM/2017/2/10/1625065709297664/1625065709682688/STEM/d440cfc65e1142e79888bef8da8a36c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5933e9dcff69d4c39c768b610390bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/405eaa0e21c6829438430175d133414e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f7464e7559a63bba3915987982fa9c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 设函数y=f(x)的定义域为D,值域为A,如果存在函数x=g(t),使得函数y=f(g(t))的值域仍是A,那么称x=g(x)是函数y=f(x)的一个等值域变换.
(1)已知函数f(x)=x2﹣x+1,x∈B,x=g(t)=log2t,t∈C.
1°若B,C分别为下列集合时,判断x=g(t)是不是函数y=f(x)的一个等值域变换:①B=R,C=(1,+∞);②B=R,C=(2,+∞)
2°若B=[0,4],C=[a,b](0<a<b),若x=g(t)是函数y=f(x)的一个等值域变换,求a,b满足的条件;
(2)设f(x)=log2x的定义域为x∈[2,8],已知x=g(t)=
是y=f(x)的一个等值域变换,且函数y=f[g(t)]的定义域为R,求实数m,n的值.
(1)已知函数f(x)=x2﹣x+1,x∈B,x=g(t)=log2t,t∈C.
1°若B,C分别为下列集合时,判断x=g(t)是不是函数y=f(x)的一个等值域变换:①B=R,C=(1,+∞);②B=R,C=(2,+∞)
2°若B=[0,4],C=[a,b](0<a<b),若x=g(t)是函数y=f(x)的一个等值域变换,求a,b满足的条件;
(2)设f(x)=log2x的定义域为x∈[2,8],已知x=g(t)=
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572554756481024/1572554762559488/STEM/a2b810ff57be4df9abcd824de7ab5533.png)
您最近一年使用:0次
名校
解题方法
7 . (本题满分18分,第(1)小题4分,第(2)小题5分,第(3)小题9分)
设函数
的定义域为
,值域为
,如果存在函数
,使得函数
的值域仍是
,那么称
是函数
的一个等值域变换.
(1)判断下列函数
是不是函数
的一个等值域变换?说明你的理由;
,
;
,
.
(2)设函数
的定义域为
,值域为
,函数
的定义域为
,值域为
,那么“
”是否为“
是
的一个等值域变换”的一个必要条件?请说明理由;
(3)设
的定义域为
,已知
是
的一个等值域变换,且函数
的定义域为
,求实数
的值.
设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f532cc913c5db7247321326980f7e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7bdd239fe9c1b45df90a99b4176982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f532cc913c5db7247321326980f7e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
(1)判断下列函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f532cc913c5db7247321326980f7e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c826ff441e670fd0aa62775863808a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/704ec5786d8803e9418eca1cf43d6227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7368be011d56a9c13cba9de16621feb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0dc2c266f0ce17fb4790daaad58e01.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2813c591e497607373fec2e0c2d2e1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284a6cd6b0048c311d693959fb8a1c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f532cc913c5db7247321326980f7e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0466187aed74d7976498b75037ef09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87df1a37e983f3d09205a957b220315f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6ce87c0777fc7cbe4c87cabe3e041f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7bdd239fe9c1b45df90a99b4176982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3877ff7fd670b0bae2b467142c2f25d.png)
您最近一年使用:0次
2016-12-03更新
|
1584次组卷
|
2卷引用:2015届上海市闸北区高三下学期期中练习(二模)理科数学试卷