1 . 在①已知角
的始边与x轴的非负半轴重合,终边落在直线
上;②
,在这两个条件中任选一个,补充在下面问题中,并对其求解.
问题:已知
满足___________,求值:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f8d270181ba54e2b1f45fa40f33a99.png)
问题:已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8d5aea3e965ff9f4dc563cc94399a1.png)
您最近一年使用:0次
解题方法
2 . 已知函数
,
,
.
从下面的两个条件中任选其中一个:①
;②若
,
,且
的最小值为
,
;求解下列问题:
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758234221510656/2791623655645184/STEM/69b09460-f51c-40b7-a41e-989756a686d8.png?resizew=507)
(Ⅰ)化简
的表达式并求
的单调递增区间;
(Ⅱ)请填写表格并利用五点作图法绘制该函数在一个周期内的图象.
(注:条件①、②只能任选其一,若两个都选,则以条件①计分)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbf1db7b947d7124d6e76ccab7e80ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89040554aa79926881b74fe954e4d08a.png)
从下面的两个条件中任选其中一个:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b082ca71dcd8a30ca7b7fbd6d29e02a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef8fe5c59d55a502ef5c049920e944c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c7e00a742229216ae22f20e326f49e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b5b210457af24d7b323ef27298b25a.png)
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758234221510656/2791623655645184/STEM/69b09460-f51c-40b7-a41e-989756a686d8.png?resizew=507)
(Ⅰ)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)请填写表格并利用五点作图法绘制该函数在一个周期内的图象.
(注:条件①、②只能任选其一,若两个都选,则以条件①计分)
您最近一年使用:0次