1 . 若
满足关系:
,求出
的最大值______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b1480c29bf6fc1fe7620f2898cd8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9459b541db97b88e28abed3358337352.png)
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12-13高二下·全国·期中
名校
2 . 在等差数列
中,
,若在每相邻两项间各插入一个数,使之成等差数列,那么新的等差数列的公差是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8999326e67b8fd38b39e79b1eb76c4.png)
A.![]() | B.![]() | C.![]() | D.-1 |
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3 . 在△
中,角
,
,
的对边分别为
,
,
,若
,则角
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb4010cd6d5cc153f2c19780ef3ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9bf9421df2cf27cd028a37f7c4703a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2019-11-10更新
|
57次组卷
|
2卷引用:沪教版 高二年级第一学期 领航者 期中测试卷