解题方法
1 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c196c9029da136efced7b337d865a2.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8185d0a85d252bd6643b6f929cb413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db457a0708f85e428d3440506eaf59d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c196c9029da136efced7b337d865a2.png)
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2 . 不等式组
的解集为A,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0d2a6750330ebe1cf1b3a65825d0e6.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c92fd5092b36998d42b525ca2f12a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0d2a6750330ebe1cf1b3a65825d0e6.png)
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解题方法
3 . 已知集合
或
,
,则
与
的关系是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6ec7dee04e38cbc4d59767cd0638d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fb3d491a81b148f8988f9d04c4a13e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2635ad9bad4b01a1a70a88f6aaee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e36107591b80216ded064f86af687b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/263c14c91031d4566e0cea585ae07ea5.png)
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4 . 被9除余2的所有整数组成的集合可表示为______ .
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5 . 满足
的集合B的个数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e29b5c15631bd03e82bfbb064398ff.png)
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6 . 用“充分条件但不是必要条件”“必要条件但不是充分条件”或“充要条件”填空:
(1)“
是有理数”是“
是实数”的______ ;
(2)“
”是“
”的______ ;
(3)“
”是“
”的______ ;
(4)“
”是“
”的______ .
(1)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613d6971e1b6425ecf2a7939cdf9b999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
(3)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613d6971e1b6425ecf2a7939cdf9b999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e23117608becdb000a9812d7fe9821.png)
(4)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a347e53d69e6279105061e656d2f5bc7.png)
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解题方法
7 . 填空:
(1)“一元二次方程
有实数根”的充要条件是______ ;
(2)“一元二次方程
有一个正实数根和一个负实数根”的一个充分条件但不是必要条件的是______ ;
(3)“一元二次方程
有两个不相等的正实数根”的充要条件是______ .
(1)“一元二次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831c3990eff0d957ad589b6b07436d4b.png)
(2)“一元二次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6caf5d9bff14784364cd2e327325e26.png)
(3)“一元二次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831c3990eff0d957ad589b6b07436d4b.png)
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8 . 请在“充分条件”“必要条件”“充要条件”“既不是充分条件也不是必要条件”中选择一个最恰当的,填空:
(1)当时,“
”是“
”的
(2)“a是偶数,b是偶数”是“ab是偶数”的
(3)“”是“
”的
(4)“”是“
,且
”的
(5)“整数n能被3整除”是“整数n能被6整除”的
(6)“”是“
”的
(7)“”是“
”的
(8)“”是“
”的
您最近一年使用:0次
9 . 用“充分条件”“必要条件”或“充要条件”填空:
(1)“
”是“
”的______ ;
(2)“
”是“
”的______ ;
(3)“
”是“
”的______ ;
(4)“
”是“
”的______ .
(1)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b54fdc920fd0a627959bbc5bd292d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f08f548d6b0614f2ad7b0c1047933.png)
(2)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
(3)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752455799e49f846e2601304fec5d3b8.png)
(4)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c007519bc7aa785f6ec5ba95d15caf26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c328c9c4ec69c4275e27576fb61655.png)
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2023-10-07更新
|
75次组卷
|
3卷引用:北师大版(2019)必修第一册课本习题第一章2.1 必要条件与充分条件
10 . 用符号“
”或“
”填空:
(1)设A为所有亚洲国家组成的集合,则中国______ A,美国______ A,印度______ A,英国______ A;
(2)0______
,0______
,-1______
,-1______
,3.14______
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
______
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
______
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
______
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
______
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
______
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
______
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
______
;
(3)0______
,1______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e581739cffb5676d997a58ab10d58880.png)
(1)设A为所有亚洲国家组成的集合,则中国
(2)0
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad135b14c9dcd83eab6618d7694c7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/816a059c6e2211380b14f6391b3f2fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad135b14c9dcd83eab6618d7694c7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0ecd416d6dc3d886b7bf73fc285dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ecb1589c3cc179e2f62507020771e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0ecd416d6dc3d886b7bf73fc285dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ecb1589c3cc179e2f62507020771e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad135b14c9dcd83eab6618d7694c7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0ecd416d6dc3d886b7bf73fc285dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ecb1589c3cc179e2f62507020771e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(3)0
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f5e5688b5c7e514ee72597690a7676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1142225762d523cb276d5e85876cfeb0.png)
您最近一年使用:0次
2023-10-07更新
|
172次组卷
|
3卷引用:北师大版(2019)必修第一册课本习题第一章1.1 集合的概念与表示