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1 . 下列结论正确的是__________ (填写序号).
①若
,则
;②若
,则
;
③若
,则
;④若
,则
.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/badfbea636b5d9275c9e97521d5328c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc8b511fbeacb0303114c760d4feab72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4bb6a5825e0dbaf4176b4d1eb5f870f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7425148ed6b167d20797f25268e1e28.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6d7a6130be06b7ce7a5273b7b3c3cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc5bbf1426b9fa7c4d49659797ef34ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6fc3e9059485da8f77b04ba7b78c52.png)
您最近一年使用:0次
2020-06-23更新
|
230次组卷
|
2卷引用:吉林省白城市洮南市第一中学2019-2020学年高二下学期第一次月考数学(理科)试题
2 . 吹气球时,气球的半径r(单位:
)与体积V(单位:L)之间的函数关系是
,利用信息技术工具,画出
时函数的图象,并根据其图象估计
,
时,气球的瞬时膨胀率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af089fd292ba69ddef79e9ab1cac77ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf4eb4532b377cda66d0139d33f7756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8390236e326f83a6d0061aaff4ca014d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a72d93e88b85a6a97aab694aa9dc88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbaab9e557fc7492319f3324791d386d.png)
您最近一年使用:0次