1 . 一次函数
的图象不过第三象限的一个充分条件是____________ (答案不唯一)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e114459637a3db306e91b5e9ee9aae8.png)
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2 . 下列“若p,则q”形式的命题中,
是
的必要条件的命题有_______
(1)若
是无理数,则
是无理数.
(2)若两个三角形全等,则这两个三角形面积相等.
(3)若
,则
.
(4)若
和
都是偶数,则
是偶数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbb9c306da912756c1292f5a9988d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若两个三角形全等,则这两个三角形面积相等.
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac37f9f4b13db156e2cbe63a9d7d4319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
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3 . 约定
与
是两个运算符号,其运算法则如下:对任意实数
,
,有
,
.设
且
,
,集合
,则集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
____________ .(用列举法表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895c0c7fd9c7ec3c84de9f32d0ad985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56c026448967b9b19bfc659d394e496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c19b67753f8b2cec30a0071c776ef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15dc696ba786691a0f402a91c1d469f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdccb9db092c70837e49b581300a5b3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cb253670dc729fe6a82b02055e5447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
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名校
4 . 在整数集
中,被
除所得余数为
的所有整数组成一个“类”,记为
,即
.给出如下三个结论:
①
;
②
;
③
.
其中,正确结论的序号是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2077e5032491293f8181c4fc3bcf360a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e854be8d44d7021f8060aebf252284a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d78bd963a3084fcdd3132e577b99dc.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa1e32b67f46da804432f2ed41c92e8f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4026261fd183b98caed503b1d4863b2f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9abd03920efdbaddac8f197dc511509.png)
其中,正确结论的序号是
您最近一年使用:0次
2023-08-30更新
|
276次组卷
|
2卷引用:北师大版(2019) 必修第一册 数学奇书 第一章 预备知识 §1 集 合 §1.3 集合的基本运算 第2课时 全集与补集
5 . 由大于
小于5的自然数组成的集合用列举法表示为____________ ,用描述法表示为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
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名校
解题方法
6 . 已知
或
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf11ab2e377b7c12e93c2156f5a5a80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842ad3e65189c68b5eee102aa8661ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5f73b53d7462906b3ea311964c97a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
您最近一年使用:0次
2023-08-30更新
|
824次组卷
|
2卷引用:北师大版(2019) 必修第一册 数学奇书 第一章 预备知识 §1 集 合 §1.3 集合的基本运算 第1课时 交集与并集
解题方法
7 . 已知
集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed125e79c02a4d59708358068408f215.png)
(1)若
则实数
的值为____________ .
(2)若
则实数
的值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82e2e77c927a7459a7263d4c3dfeb47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed125e79c02a4d59708358068408f215.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55fe52f9f8197bcd59ba7cdcffc21d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d30dea977800ba19d9add71840f868f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
8 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697520d1152eb9a650f7a0f30641e156.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b1df33db6f8f3a248218120fe83530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12445730743b270c7e4252fbf0c36542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697520d1152eb9a650f7a0f30641e156.png)
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9 . 设集合
,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
____________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb000761a3d3a2d666141aee8e1adfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abbd33b53e523466ce9ac56cdab2b428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfafab412f3c79485a999b6e9108101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3989f28e0bb6a54446edb919bdf3682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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10 . 集合
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cceb0e5b9313581697714c204867cf3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7870b944ffc590f275a2c3b788eb66b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940fb5a4ceeeba61d48e13ada97d08fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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