2019高一·浙江·专题练习
1 . 已知集合
,且
,实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ ,
的真子集个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e44a33b6fb598be1837c406d330ec02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf752ccb909d210e2a97c11880519c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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2019高一·浙江·专题练习
2 . 已知集合
,
.
(Ⅰ)若
,写出集合
的所有子集;
(Ⅱ)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b534dd77ccad95d874a1dbb8ab4495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d274473e2618c68d5636e9b26f78b24f.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f34f9141c604608c1834763e57c390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffea60bfbaba847f59fc9df3e8d087aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
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3 . 已知集合
,集合
满足
,则集合
的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514cb5110a16735e60a0397503f21265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fcee313e5bb87383f0430da80cd895e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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