1 . 已知
,过点
和
的直线为
.过点
和
的直线为
,
与
在
轴上的截距相等,设函数
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667160d99fbb37feca6001a20e4e1cf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f5d96189cd76bfe57b65647cfaa150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d363be850487d7cc68074c64f55dee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a775e13b05e0b31aad9b5744fda747e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faef41ef4237d71e748c015b7861c770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eec0c145e060d0bd491b972646f29b4.png)
A.![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.![]() ![]() ![]() |
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名校
2 . 著名的伯努利(Bemoulli)不等式为:
,其中实数
同号,且均大于-1.特别地,当
,且
时,有
.已知伯努利不等式还可以推广为:设x,
,若
,且
,则
.设a,b为实数,则下列结论正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94a236cac214e5c2b56ca013f62ccca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361386446d504a14471b9fd89130f1c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5026dc5ead3b5adf0e5f4b3e7c4eca1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b280948494849391f9bef054c32c30f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f42a14246a32b61933b220938aa841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac6892e2785afa831608337a3064803.png)
A.任意![]() ![]() ![]() |
B.任意![]() ![]() ![]() |
C.任意![]() ![]() ![]() |
D.任意![]() ![]() ![]() ![]() |
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