10-11高二下·浙江温州·期末
1 . 函数
的最小值为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9d8cf847ffc1efe85986aae797e5fd.png)
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名校
2 . 已知三个实数
、
、
,其中
且
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0105cd0b15e052014d66913a02e333d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff263424cc626096b7339a284a579d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93de75982fcf1bea162d367c2ddbb613.png)
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3 . 定义在
上的函数
满足
,当
时,
,则当
时,
的最小值是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fad4b961de8e754422378405d843cb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070c0a4ad0730faf892e93f8ba1c1da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
4 .
函数在区间[-1,4]上值域为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54a05baa339d6464bea48bfc171fa30.png)
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19-20高一·全国·课后作业
解题方法
5 . 设函数
,
是二次函数.若
的值域是
,则
的值域是__________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c31aa4a021c4d6bfe8d510c0a3ad5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c735550bf19096ef02e7cc05b40a0879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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14-15高三上·上海黄浦·期末
6 . 三阶行列式![](https://img.xkw.com/dksih/QBM/2014/2/21/1571519887433728/1571519892692992/STEM/4b90c8b9701242fc9c845707ddc6804a.png?resizew=114)
中元素4的代数余子式的值记为
,则函数
的最小值为___________
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571519887433728/1571519892692992/STEM/4b90c8b9701242fc9c845707ddc6804a.png?resizew=114)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571519887433728/1571519892692992/STEM/a8fed0ecf230469889b1f334204bcc12.png?resizew=52)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571519887433728/1571519892692992/STEM/c4bcb249a36f4997ab77948c329e980d.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571519887433728/1571519892692992/STEM/5bc2664086a94ea9b4629bfe2a2f5f8e.png?resizew=37)
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7 . 若实数x,y满足x+y=6,则f(x,y)=(x2+4)(y2+4)的最小值为____________
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19-20高一下·浙江金华·期中
名校
8 . 已知
的定义在
上的奇函数,当
时,
,函数
,如果对于任意的
,存在
,使得
,则实数m的取值范围是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30a5498bb0236a2bb04ae38329b408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71bb7883ea87e6275472dbe14ee62357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e47d77aa8a3cff15aaa7e1e893c761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e27998c66a7be5c812033b7e883b8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b22239241a16d7e9a52d3a437f4c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c230a4f0f764f7d8bb18f19657d52a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347ac85769012f89d1f9951684e1d7b9.png)
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2020高三·全国·专题练习
解题方法
9 . 已知函数
为奇函数,且当
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________ ;当
时,
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b1958fec0bf13ad1055c2afbdacb46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538193a4717d564c01145e82314c2d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2020高三·全国·专题练习
10 . 已知实数x,y,z满足
,则xyz的最小值为 ________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b136434b103f1b564f1cbe3625b820.png)
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