1 . 设函数
的定义域为R,且
,
,当
时,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3b657ebd1733b4f19dcbec44919924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5364cd27f975b4728a70169af9a61a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8baf73d15ca9ca9c5ea66e366a5969.png)
A.![]() | B.![]() |
C.![]() | D.函数![]() |
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解题方法
2 . 已知
,函数
,
.
(1)若
,
,求
;
(2)若
,
,求m;
(3)若
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8913c4863ff7e4060e075f79f9e2a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2476c6a7b73d4d8ad99ffaca4afb76d1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73b85378c1f65d0ca0e4c30a14ccee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302b4d220b829aeede0b874ac26c35f7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a83eb8584e1ab069a24ea3911778c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb00c0bbee9e93f495c57a6805b447f5.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51d3fb60fdba2bc8bd0811fcabfa3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82f4ce319a1e1ff7137e0267201ea27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e067be545a0178382625422a2e67621d.png)
您最近一年使用:0次