中学生网络课堂本课配套习题挑战模式1/3
单选题
难度系数：
1.
函数
的最大值为( )
| A:
|
| B:
|
| C:
|
| D:
|
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5rGC5a+85Ye95pWwPC9wPg==
- 提示2：PHA+5Yip55So5a+85pWw5rGC5p6B5YC844CB5pyA5YC8PC9wPg==
- 答案：QQ==
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
本课配套习题挑战模式2/3
单选题
难度系数：
2.
若函数
，则（ ）
| A: 最大值为 |
| B: 最大值为 |
| C: 最小值为 |
| D: 既无最大值也无最小值 |
，最小值为
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5rGC5a+85Ye95pWwPC9wPg==
- 提示2：PHA+5qC55o2u5a+85Ye95pWw55qE56ym5Y+356Gu5a6a5Y2V6LCD5Yy66Ze05ZKM5p6B5YC8PC9wPg==
- 提示3：PHA+57u85ZCI6ICD6JmR5pyA5YC86Zeu6aKYPC9wPg==
- 答案：RA==
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
本课配套习题挑战模式3/3
单选题
难度系数：
3.
已知
（
为常数）在
上有最大值
，
那么此函数在上的最小值为（ ）
| A: -37 |
| B: -29 |
| C: -5 |
| D: -11 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5rGC5Ye65a+85pWw5Li66Zu255qE54K5PC9wPg==
- 提示2：PHA+5rGC5Ye656uv54K55Ye95pWw5YC85ZKM5p6B5YC8PC9wPg==
- 提示3：PHA+5qC55o2u6aKY5oSP5rGC5Ye6beeahOWAvDwvcD4=
- 答案：QQ==
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
