解题方法
1 . 已知圆C:
,直线l:
,若l与圆C交于A,B两点,设坐标原点为O,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca01d1c400707e011745ad16199da13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef6d00ddabcb1bb41fae534f5183ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df09bff72dab3e6555a0597b638a3bd0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知定义在
上不为常数的函数
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2628e2dd7a988cc80530e739c22b2280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1273c46b7fcc753edffec8da083f60b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知函数
为偶函数,将
图象上的所有点向左平移
个单位长度,再把图象上所有点的横坐标变为原来的
,得到函数
的图象,若
的图象过点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6302c662850e68c5255a179ebd235c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1bb3229fd3302edbee5fcb83be491d6.png)
A.函数![]() |
B.函数![]() ![]() |
C.函数![]() ![]() |
D.函数![]() ![]() |
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解题方法
4 . 在棱长为2的正方体
中,
为
的中点,以
为原点,OB,OD,OO1所在直线分别为
轴、
轴、
轴,建立如何所示空间直角坐标系.若该正方体内一动点
,满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a20b689283cc8b311eddae4c8c4242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ea83a384f056dadaacfa349cc84130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bfcaf2a345411411cf94422703e9269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e588cb555e36f28c5db66d213ef064d4.png)
A.点![]() ![]() | B.![]() ![]() |
C.![]() | D.三棱锥![]() ![]() |
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解题方法
5 . 若椭圆
的左,右焦点分别为
,离心率为
,点
在椭圆
上,
的内切圆的半径为1,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee9d4ad39e56940f519bd3acc5e85ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5040ccc0d21519fc2ea911fce42e22d9.png)
您最近一年使用:0次
解题方法
6 . 已知正项数列
的前
项和为
,且
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b066416d8d61e8666b3b9d5d24a789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01cc5a3d0a69fdf4297ce92c048a5de0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7023d3a92d97b12ca99cc05f105115.png)
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7 . 过点
向圆
作两条切线,切点分别为
,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffd1af70bfee78356fc7c515c283730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675fc8ea457e0ceb6c0adf455d8a9c3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4215ae359227ff75071903accff4feba.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
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8 . 已知正三棱台的上、下底面边长分别为
,体积为
,则该正三棱台的外接球表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a01cfd85099af301ec78b409e94f00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c22ec422e693c68a141b38b321ddda9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 已知向量
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013b1423e5cff4d3f20c6346a100e4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc66cd5ccd5a579a42c6a241c62d764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780cba61bee49b5b5c51390969741a69.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
昨日更新
|
151次组卷
|
5卷引用:东北三省四城市联考暨沈阳市2024届高三下学期数学质量检测(二)
解题方法
10 . 已知
两个盒子中各有一个黑球,一个白球.每次从两个盒子中各随机取出一个小球交换后放回.记
次交换后,
盒子中有一黑一白两个小球的概率为
盒子中黑球的个数为
.
(1)求
;
(2)求
的数学期望
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f78093af1942339f74a1ec6e99aaab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d0f3799612b81e85b87241ec8eee68.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d0f3799612b81e85b87241ec8eee68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6522c8c52be9ae43994b0cfccaa887f.png)
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