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解题方法
1 . 推行垃圾分类以来,某环保公司新上一种把㕑余垃圾加工处理为可重新利用的化工产品的项目.设该公司每日处理厨余垃圾的成本为
(元),日处理量为
(吨),经测算,当
时,
;当
时,
,且每处理一吨厨余垃圾,可得到价值100元的化工产品的收益.
(1)当日处理量为10吨时,该公司每日的纯收益为多少?(纯收益=总收益-成本)
(2)该公司每日处理的厨余垃圾为多少吨时,获得的日纯收益最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd029f6eb105ea3011e815d40020c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66531e12a9ec0cf185cddad6d428c6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf63bdf8aaa67778e870f1b7d29adb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b05d10c6aded890f6d4faaabea4662c.png)
(1)当日处理量为10吨时,该公司每日的纯收益为多少?(纯收益=总收益-成本)
(2)该公司每日处理的厨余垃圾为多少吨时,获得的日纯收益最大?
您最近一年使用:0次
2023-10-14更新
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173次组卷
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2卷引用:海南省琼海市嘉积中学2023-2024学年高一上学期10月月考数学试题
2 . 设全集为R,
,
.
(1)求
,
;
(2)集合
,写出集合C的真子集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c34b9a4f7cb77384c50d80ccc8e007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bfecf38965208b6f5488da2b3480a46.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318212b9ba5866ba3fd6f4327526443f.png)
(2)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ceeac11ea799205b2a3cc16aeeb42dd.png)
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解题方法
3 . 已知集合
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7508798338550e56c522d3a742f85b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/debc7aca11b361fec25de828806bf66c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ae18508906c21d3e1199f231b1a9a4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-10-14更新
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150次组卷
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2卷引用:海南省华中师范大学琼中附属中学2023-2024学年高一上学期10月月考数学试题
4 . 已知集合
,
,
,
(1)试求实数a的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14ae206e70a2413e0fd6656fb628ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cd5165f61f29325e8e05673630b9c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af09890b287b76f71c8a594c53da8839.png)
(1)试求实数a的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
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解题方法
5 . 已知全集
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db530c89d2a3392872a47595f479554d.png)
(1)用列举法写出集合
,
,
;
(2)若
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61992194f2e4d627e132b496330ea15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c2449b67eaa3041f1a41aafb95620c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db530c89d2a3392872a47595f479554d.png)
(1)用列举法写出集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01e6f87f7611a1c2d7dee1f1fa3afda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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6 . 若
,则实数
的取值构成的集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04cfaeed0bcad6d38cef5c2853984345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
7 . 在①
,②
,③
这三个条件中任选一个,补充到下面的问题中,求解下列问题:
已知集合
,
.
(1)当
,求
;
(2)若A非空,______,求实数a的取值范围.
注:如果选择多个条件分别解答按第一个解答计分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53690cf988ac0f616164d045fb8ee4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6d5ec034a71ecae714951274be2cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cf99c0ec43ac6b297dc694c687a260.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若A非空,______,求实数a的取值范围.
注:如果选择多个条件分别解答按第一个解答计分
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8 . 已知集合
,
且
,则
中元素的个数为______ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d99d105bb887749d84e385d075b7f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60495c4fd0b2850720609ed7569fa683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd49ba8033740bc021f58b05451f9c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
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9 . 用列举法表示集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6532c768127a3281d0a963992b6963e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6532c768127a3281d0a963992b6963e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
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名校
解题方法
10 . 函数
的定义域为
,已知当
时,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe5a5b13120eb3832973b69717d6783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5c837522a811402efb9762210c5362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d1f6f459292de1002f863203ce91a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5215a578933ba72022450a6d3a37d14.png)
A.0 | B.![]() | C.1 | D.2 |
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2023-10-05更新
|
751次组卷
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3卷引用:海南省农垦中学2023-2024学年高二上学期第一次月考数学试题