已知函数
.
(1)若
,求曲线
的斜率为0的切线方程.
(2)若
,函数
有最大值.
①求实数t的取值范围;
②设
的最大值为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9224dda2f688a96bd56d9c2b4f8cc877.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3eb24e720ba424dca651a31ed61552.png)
①求实数t的取值范围;
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d0532bf8ea573af0bc5bbda9e52154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a5b9229a9861443ac5f87afe18fa11.png)
21-22高三上·河南·阶段练习 查看更多[2]
更新时间:2022-01-03 09:10:37
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【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ae88d32fe99a07a255488b02224ce0.png)
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适中
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