解题方法
1 . 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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2 . 已知函数
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514df790653cf281af6323d283f72acd.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() |
C.存在![]() ![]() |
D.若![]() ![]() ![]() |
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解题方法
3 . 已知正四面体
的棱长为2,M,N分别是棱
,
的中点,过M、N作正四面体
的截面
.有下列结论,其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.异面直线![]() ![]() ![]() | B.![]() |
C.若截面![]() | D.截面![]() |
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4 . 下列不等式中正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
5 . 已知函数
,
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b647867d91de52884cea8c492fb0f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b29e5cc1e369f351eb1b505919f6ab.png)
A.函数![]() ![]() ![]() |
B.令![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
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7日内更新
|
270次组卷
|
2卷引用:广东省深圳市光明区光明中学2023-2024学年高二下学期期中考试数学试题
名校
解题方法
6 . 函数
有三个不同极值点
,且
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf42654d900f4ca45ba473d9ba363b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7af029ff25c826608dc72348532407.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-06-14更新
|
78次组卷
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2卷引用:山西省晋城市第一中学校2023-2024学年高二下学期第四次调研考试(5月)数学试题
名校
7 . 设
为正整数,已知函数
,
,
. 当
时,记
,其中
. 则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e19024088b481805fd372b7b2ffdd8e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95372397621e3a2fc70a6e198e29f44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02511beb97ace697703ada6473ed5d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd600b451b2b7f1680cbbcf36a49703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be308b9f7b2b213abcbcea79f0d42f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9464ddd75dd13f2019e6a868301ff629.png)
A.![]() ![]() |
B.![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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解题方法
8 . 已知抛物线
的焦点为F,过F的直线l与C交于A,B两点,点P在C的准线上,那么( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
A.若PA与C相切,则PB也与C相切 |
B.![]() |
C.若点P在x轴上,则![]() |
D.若点P在x轴上,且满足![]() ![]() |
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解题方法
9 . 如图,在直三棱柱
中,
,
分别为棱
上的动点,且
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d157676c47a9b8f102adb3734fee05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfb9c088a7422e95f747701a626513d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b1ba2e2dbab8c7bec0dad6b63fcc5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1055cc6113535d708228f1de3307d2f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de70098ff89ac12b26af3778683d7a25.png)
A.存在![]() ![]() |
B.存在![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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|
841次组卷
|
5卷引用:山东省烟台市2024年高考适应性练习(二模)数学试题
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10 . 对于一元三次函数
(
)图象上任一点
,若
在点
处的切线与
的图象交于另一点
,则称
为
的“伴随割点”,关于“伴随割点”,下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19951f3364fb04433feed743bc37975d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.点![]() |
B.若点![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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