1 . 设函数
图象上不同两点
,
处的切线的斜率分别是
,
,规定
(
为线段
的长度)叫做曲线
在点
与点
之间的“弯曲度”,给出以下命题:
①函数
图象上两点
与
的横坐标分别为1和
,则
;
②存在这样的函数,图象上任意两点之间的“弯曲度”为常数;
③设点
,
是抛物线
上不同的两点,则
;
④设曲线
(
是自然对数的底数)上不同两点
,
,则
.
其中真命题的序号为__________ .(将所有真命题的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8605ae9897d5d6f0679b4aa80e014bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b3e87e9bb00d9ba09cb5660aebd76f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7d70c30402ee0eeaab96cc6eefc0cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c904567c3b3734e1eca8d042ef7a7b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9194547561993c2c98a4f32201012c.png)
②存在这样的函数,图象上任意两点之间的“弯曲度”为常数;
③设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b629bea8e22de9bfc49158e2289871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad613217bdff0b1c225e3e5ca31eec4c.png)
④设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d456cce6e8beeff190657ed57e3e05.png)
其中真命题的序号为
您最近一年使用:0次
名校
2 . 函数
图象上不同两点
,
,
,
处的切线的斜率分别是
,
,规定
叫曲线
在点
与点
之间的“弯曲度”,给出以下命题:
(1)函数
图象上两点
、
的横坐标分别为1,2,则
;
(2)存在这样的函数,图象上任意两点之间的“弯曲度”为常数;
(3)设点
、
是抛物线,
上不同的两点,则
;
(4)设曲线
上不同两点
,
,
,
,且
,若
恒成立,则实数
的取值范围是
;
以上正确命题的序号为__ (写出所有正确的)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a54e0b4872cabdc0b07ea9380e4de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a350eb41c3b7e4face9c3299eff9d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8e72f73db207c3040f143d837d5995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24529eadaef974ec0625f8ca40682e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8605ae9897d5d6f0679b4aa80e014bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b3e87e9bb00d9ba09cb5660aebd76f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7d70c30402ee0eeaab96cc6eefc0cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63710d6fa1a1d49e2d6c5e01eb6478e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316db967a70305dcd846281b29f421db.png)
(2)存在这样的函数,图象上任意两点之间的“弯曲度”为常数;
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b629bea8e22de9bfc49158e2289871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e830ac46ef256e63a1df50a646ecac.png)
(4)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2eff609c6043c2a89a6dd163fe2244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a54e0b4872cabdc0b07ea9380e4de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a350eb41c3b7e4face9c3299eff9d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8e72f73db207c3040f143d837d5995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24529eadaef974ec0625f8ca40682e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08aeab36f3c3546b641470aad464ebd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a77a34f36071ad8c963cfe72f3c465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d8fcaef916db4b90e9ce3054974759.png)
以上正确命题的序号为
您最近一年使用:0次
2020-02-08更新
|
518次组卷
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13卷引用:2016届吉林省实验中学高三第三次模拟理科数学试卷
2016届吉林省实验中学高三第三次模拟理科数学试卷2015届山东省日照市高三校际联合检测(二模)理科数学试卷2017届湖南衡阳八中高三上学期月考二数学(文)试卷四川省双流中学2016-2017学年高二下学期6月月考数学试题河北省衡水中学2018届高三上学期二调考试数学(理)试题陕西省西安市长安区第五中学2018届高三上学期第二次模拟考试数学(理)试题1四川省树德中学2018届高三12月月考数学(文)试题青海省西宁市湟川中学2019届高三上学期第三次月考数学试题2019年青海省西宁市城西区青海湟川中学高三上学期6月月考数学试题北京市东城区第五中学2019-2020学年高三上学期12月月考数学试题2019届百师联盟全国高三冲刺考(四)全国 II 卷理科数学试卷(已下线)专题05 拿高分题目强化卷(第三篇)-备战2021年新高考数学分层强化训练(北京专版)(已下线)压轴题圆锥曲线新定义题(九省联考第19题模式)练
名校
3 . 已知函数f(x)=x3+ax2+bx+c,x∈[-2,2]表示过原点的曲线,且在x=±1处的切线的倾斜角均为
π,有以下命题:
①f(x)的解析式为f(x)=x3-4x,x∈[-2,2].
②f(x)的极值点有且只有一个.
③f(x)的最大值与最小值之和等于零.
其中正确命题的序号为________ .
![](https://img.xkw.com/dksih/QBM/2018/7/10/1985400490229760/1986295281664000/STEM/a8c06c50b62547138ae5a1e12535763d.png?resizew=7)
①f(x)的解析式为f(x)=x3-4x,x∈[-2,2].
②f(x)的极值点有且只有一个.
③f(x)的最大值与最小值之和等于零.
其中正确命题的序号为
您最近一年使用:0次
2018-07-11更新
|
287次组卷
|
2卷引用:吉林省长春市第二实验中学2020-2021学年高二下学期4月月考数学(文)试题