已知幂函数
的图象经过点
.
(1)求函数
的解析式,并画出图象;
(2)证明:函数
在
上是减函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96869a02e8e3a0eb9e3e61d025b13bdf.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a141e697b1a31a9a4e759984e899a5.png)
更新时间:2016-12-04 00:08:42
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【知识点】 幂函数
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解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知幂函数
在
上单调递增,函数
.
(1)当
时,记
的值域分别为集合A,B,设
,若p是q成立的必要条件,求实数
的取值范围.
(2)设
,且
在
上单调递增,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700cf041d31cff475734be1fe347142a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407f0f7bd28c9cb9c5b44ac662acb78b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58bbbdde60cf4f80c3ea6a1740edba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c0ed188d083966baaae94e6b86064f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1172c80b0d9bcb52d4071f27171819ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed2f88f84be363d263efb50f99dcf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0413d34f2a859f342070dd130fd5fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知幂函数
的图象经过第三象限.
(1)求
的值;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8720a997d959c1d9f9b2c6da4d2feb6a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453f4fba2da4b7889c3a87007bb357cf.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】已知幂函数
(m,
)为偶函数,且在区间
上是单调递增函数.
(1)求函数
的解析式;
(2)设函数
(
),其中a,
.若函数
仅在
处有极值,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b48ab3f10bf8cab4cc170d4cad92ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f02d5c8eec434a3f90348d770a2e2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3719909fdbdbab5df2c40da3d762e16d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
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