已知函数
.
(1)若
,求
在
上的值域;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32ed676196712c34bab7b3c62a54170.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8421f111b3e4bacc18ec9b56a6500d99.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
更新时间:2024-02-12 21:48:30
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【推荐1】已知函数f(x)=logax,其中a为大于1的常数.
(1)若0<x1<x2,试比较f(
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(2)若A(t,f(t)),B(t+2,f(t+2)),C(t+4,f(t+4))(t≥2)三点在函数y=f(x)的图像上,记△ABC的面积为S,求S=g(t)的表达式,并求g(t)的值域.
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(2)若A(t,f(t)),B(t+2,f(t+2)),C(t+4,f(t+4))(t≥2)三点在函数y=f(x)的图像上,记△ABC的面积为S,求S=g(t)的表达式,并求g(t)的值域.
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【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43012bd0a8747ef3f7453cc35ab277f.png)
且
.
(1)判断函数
的奇偶性,并证明;
(2)当
时,
,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43012bd0a8747ef3f7453cc35ab277f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e622d1087ac55db6fa3e450199446f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42bb28003d53334358dddcbb449ba0b9.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb77778dd6326f49d9d759beb5287c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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适中
(0.65)
名校
解题方法
【推荐2】已知函数
是定义在
上的奇函数,当
时,
.
(1)当
时,函数
的解析式;
(2)解关于x的不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6e7703fff4ac1671628b97e8e0dbb2.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ba369de841067c222607edba0cc77c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6e7703fff4ac1671628b97e8e0dbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.png)
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适中
(0.65)
解题方法
【推荐1】已知函数
,
(其中
且
).若函数
的零点是
.
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(2)判断
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(3)求使
成立的
的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09aeb36f1fa04479444e76c7deb8fe41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926e8fdce78fbe7647949ef78a8fe243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4633de9335d15d7685bdecb007a3678c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(3)求使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089a407016a48bd18f7ccb79355e8f1a.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)
名校
解题方法
【推荐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a的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560d40592d78b0c23a7cd28f167a0165.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ef547adfd0d53111571e22a60c3962.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f884d3de1ee2523d73cf25fca011926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e346f7ba389e6b1242e2266a9c2372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
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