已知函数
是二次函数又是幂函数,函数
,函数
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd3e8a7ebe99756615dc1305d26b7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b080970a8fc6e9131f6b008c6cf19e6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e901e95a032fc1b3ea7c4f131b309d29.png)
更新时间:2023-03-07 19:55:10
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适中
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解题方法
【推荐1】已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbec14d8e1a95a2df1c30264cba30de.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428073c2badf6ed05f47942596862ad9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbec14d8e1a95a2df1c30264cba30de.png)
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【推荐2】已知函数
,则不等式
的解集为____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32cbe01d0da376b00d80ac8c3620fed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d34439dbf2b5008ee56be21444f3e9db.png)
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解题方法
【推荐1】已知
为定义在
上的偶函数,当
时,有
,且当
时,
,给出下列命题:
①
的值为
;②函数
在定义域上为周期是2的周期函数;
③直线
与函数
的图像有1个交点;④函数
的值域为
.
其中正确的命题序号有___________ .
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/97dbd2b59bdf47bfac37e13a970bdb6d.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/25d7d16c6ace41a192624055e09f1cd6.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/e069b558837a46ce839d66914ffae5db.png?resizew=33)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/efb515a777ff4cf988201ca14a7f117f.png?resizew=100)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/39140a500e3a472aaf2379bc7ef14081.png?resizew=48)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/4c4b7248be994b12ba59a07126381dcf.png?resizew=121)
①
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/bd5f49a5b4ca46cbbce444965a0ac764.png?resizew=127)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/f9d56437b8a14dbfbf1bb21fd6a00c00.png?resizew=12)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/d8fe5f857ade474cb850adeb23ab6bb5.png?resizew=36)
③直线
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/30c3ce7278f64d45895b3400efe54a6e.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/d8fe5f857ade474cb850adeb23ab6bb5.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/d8fe5f857ade474cb850adeb23ab6bb5.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2014/2/21/1571520766771200/1571520772505600/STEM/2fecdb2abfc747a5b70ae92445b16fe6.png?resizew=36)
其中正确的命题序号有
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适中
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解题方法
【推荐2】记不等式
的解集为集合
,函数
的定义域为集合
.若“
”是“
”的充分条件,则实数
的取值范围为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f90af9ba1a3d2362ecba6775e1d0030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1ddeec6ffc952503e0b53dad8096d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
【推荐1】已知幂函数
过点
,若
恒成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ ;实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce073373a3fe4419ff9a07ea1654ffa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edece940d1201a6db8920409f80ecf80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d9f6f1374883173f461efcbf538950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
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【推荐2】已知
是幂函数,对
且
有
,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/775409834c964333b8c6f58127b7fab6.png)
________ 0(填
,
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28a628a8a209003373a57b43893b216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecaf15f775bd33cc59d4fb510c16977b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698cf53f76a1d637dfe2732d0a866eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd039882414ced3cd59d7a4d5ec76f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ed37ee7432002cd0e0978b2012e184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/775409834c964333b8c6f58127b7fab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
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