文档介绍：
2022年湖北省新高考联考协作体高一下学期3月考试
高一数学试卷答案
选择题
1
2
3
4
5
6
7
8
9
10
11
12
D
B
C
D
A
C
A
C
ACD
ABC
B
2022年湖北省新高考联考协作体高一下学期3月考试
高一数学试卷答案
选择题
1
2
3
4
5
6
7
8
9
10
11
12
D
B
C
D
A
C
A
C
ACD
ABC
BD
BCD
二、填空题
13. 14. 15. 16.
12题解析：易得图象如右图示：
由题设：令，则方程有2个不同的实根，则，可得或，
若，则或，
令，
∴或(舍)，
∴综上，可得.
故选：BCD
16题解析：函数，所以当时，，
所以时，得取遍所有大于1的数，故其指数得取遍所有大于0的数.
因为，，
当时，不成立；
当时，其开口向下，有最大值，无法去到正无穷，舍去；
当时，其开口向上，对称轴大于0，故需对称轴对应的值小于等于0，故有：且
，综上所述，实数的取值范围是.
故答案为：.
：（1） ………………4分
（2）
当时， ………………6分
当时， ····························9分
综上所述： ………………10分
18.（1）解： ，∴····················2
∵在第二象限，∴，，
·················································5
·········································································6
解:,
∴························································8
······················································9
.·································12
(1)，···············4··················································6
（2）当时，在处取得最大利润为700万元；·················8
当时，在处取得最大利润为1200万元.············································································11
当产量为70万盒时，该企业在生产中所获得利润最大.·····························12
（1）由题意可知，，解得····························1
则······································