名校
解题方法
1 . 对下列命题:
(1)
的最小值为4;
(2)若
是各项均为正数的等比数列,则
是等差数列;
(3)已知
的三个内角
所对的边分别为
,
,
,且最大边长为
,若
,则
一定是锐角三角形;
其中所有正确命题的序号为_________ (填出所有正确命题的序号).
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24539bf655f0693621fdf36098346de2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc71a2fd8c6b263feea5ff5d6a36121.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95563a79e3b68c597ae1e5167516ff88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
其中所有正确命题的序号为
您最近一年使用:0次
2 . 对下列命题:
(1)
的最小值为4;
(2)若
是各项均为正数的等比数列,则
是等差数列;
(3)已知
的三个内角
,
,
所对的边分别为
,
,
且最大边长为
,若
,则
一定是锐角三角形;
(4)若向量
,
,且
是锐角,则实数的取值范围为
;
其中所有正确命题的序号为_________ (填出所有正确命题的序号).
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92764eb4fd255796e92c2c4db5909efc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc71a2fd8c6b263feea5ff5d6a36121.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95563a79e3b68c597ae1e5167516ff88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(4)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62eed5791457162b13ee2441e4ce5a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c0e5d846bda84a19077cc7ad8f4ae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6d51b27236dbd7f32f5e1ac86c9e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a891eb0f07654c6dda4380b2fae38e8a.png)
其中所有正确命题的序号为
您最近一年使用:0次
2020-07-25更新
|
502次组卷
|
2卷引用:四川省眉山市2019-2020学年高一下学期期末考试数学试题
3 . 已知函数
,有下列四个命题:其中正确命题的序号为_____ .(填上所有正确命题的序号)①若
,要得到函数
的图象,只需将函数
的图象向右平移
个单位;②若
,则函数
的一个对称中心为
;③若
的一条对称轴方程为
,则
;④若方程
的正实数根从小到大依次构成一个等差数列,则这个等差数列的公差为
.
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/32f58c7f1fa74f2ca2271e782f87f7ee.png?resizew=220)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/b8e81a0b121e4dfb8c1e7675b9b54f1d.png?resizew=93)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/eef3657ef1714f52a100d893c3ccfc78.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/a4e4853cbeec486f89e3ce5a9eaca63c.png?resizew=77)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/1957592ddd084e389a3693003ac415fb.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/fbb46f9fc2634e0f8492014b9dad2370.png?resizew=81)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/eef3657ef1714f52a100d893c3ccfc78.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/b20535b79ff94fe9b2c279563f4f0105.png?resizew=46)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/eef3657ef1714f52a100d893c3ccfc78.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/a203d6e592594c92a743495ed3cd8df7.png?resizew=42)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/398232110d724cb3adcbffd032a07453.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/9bc706598cd249dc87e83ab189046b0e.png?resizew=143)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572816948092928/1572816954245120/STEM/9bd24ca6953245f5a16a96b0f6f10050.png?resizew=15)
您最近一年使用:0次
名校
4 . 等差数列
的前
项和为
,若
,公差
,有以下结论:
①若
,则必有
; ②若
,
,则
;
③若
,则必有
; ④若
,则必有
.
其中所有正确结论的序号为______ .
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812be9806122241c476ba1db516c4823.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63911d261ebb75e0ab8f76b58cbb7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e93339c2793d3d8add8cd5770d20fb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6c2e49c873187b12e90a7b4d5d906b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b043acaf51edc23e735492fa61e66f4.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea31d9dcfd7fba1b7c90d4c349525ed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe9f984aaa409de0dde80189cda4d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d77bb6b1a5ca128223c897cf09ba19d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9a959dda5985723ef15d5d31ea6a25.png)
其中所有正确结论的序号为
您最近一年使用:0次
2021-08-03更新
|
624次组卷
|
3卷引用:四川省资阳市2020-2021学年高一下学期期末数学试题
解题方法
5 . 下列说法中,正确的有_______ .(写出所有正确说法的序号)
①在
中,若
,则
;
②在
中,若
,则
是锐角三角形;
③在
中,若
,则
;
④若
是等差数列,其前
项和为
,则三点
、
、
共线;
⑤等比数列
的前
项和为
,若对任意的
,点
均在函数
(
且
,
、
均为常数)的图象上,则
的值为
.
①在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/336bbf462ae13b146976ef65a58a5969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
③在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe02d5a322e6f254bd8d51a5b346c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b925cbc2194a19c1830b9dd56cf1c4c5.png)
④若
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3476fd22fa21beabbae9460e1406d45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a906525d675d27085f1ceda8d9996ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564b9b7e76e0fc8685023137b0b7f7ba.png)
⑤等比数列
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41f32693d25ece7f8e22c34a183537f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e058d98f8a257226d0fbcc941f72f4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b011f69dfc5262a3d82f64676739b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/406185f4ad8bcd99e23adc8d289088ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
您最近一年使用:0次
2020-03-02更新
|
543次组卷
|
2卷引用:四川省蓉城名校联盟2018-2019学年高一下学期期中联考理数试题