已知函数
,如果对任意的
,定义
,例如:
,那么
的值为____
![](https://img.xkw.com/dksih/QBM/2017/1/4/1619442112995328/1619442113388544/STEM/a4201273677f45d9a3d5cf0e75ddc33e.png?resizew=148)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1619442112995328/1619442113388544/STEM/f5286b2f6b224f99bb6d684d292d2949.png?resizew=47)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1619442112995328/1619442113388544/STEM/80c616cba0e54daea1be04431aec1df7.png?resizew=160)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1619442112995328/1619442113388544/STEM/3e732c07f2204f24b7204066419f692c.png?resizew=108)
![](https://img.xkw.com/dksih/QBM/2017/1/4/1619442112995328/1619442113388544/STEM/93b25330a66a491a85c4e5eca7d415ff.png?resizew=54)
更新时间:2017-02-08 10:26:19
|
相似题推荐
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】已知函数
恒满足
,且当
时,
,则函数
在
上的零点的个数是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c25fb0c3e1b6ef211233170b9aa9001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0c3821f3714b9221733a552ddea341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10353c2a79631a78325baafb26681085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐2】定义在
上的函数
满足
,且
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4277390249b347fdd40159a7f0098b07.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a6d1810ec2b01378ea88e1fd6bbf8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01d07f3a82196cabb98a2ab98686eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d05450d5b098cfcb08a4dee69292079d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4277390249b347fdd40159a7f0098b07.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐1】定义
,若函数
,
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfdad84f6935a60b2f39457fc83d97ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041db73423b18b3dd095706f677e0125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d0498f00005cbdec1f2f1dfb45e471.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐2】在平面直角坐标系中,定义
为两点
之间的“折线距离”,有下列命题,其中为真命题的是___________ .(填序号)
①若
,则
;
②到原点的“折线距离”不大于
的点构成的区域面积为
;
③原点
与直线
上任意一点M之间的折线距离
的最小值为
;
④原点
与圆
上任意一点M之间的折线距离
的最大值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d4c3e5b947585dcbba3cbd9b08ce53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c74197103c75f9341c328832bce6cdf3.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ef129088add3b30e7699ea79e4b69a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5753301dc94bed7fd1b98de2960f88.png)
②到原点的“折线距离”不大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
③原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04836ba2906cf6f1e9aecd2a00824aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ecb9decb8e10f36b3ac6a6e1f2d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
④原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c1b3269c01896e70361a81b50d972d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ecb9decb8e10f36b3ac6a6e1f2d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a45297e103a8b9d1fd49a73e7f8745.png)
您最近一年使用:0次