1 . 已知
为等比数列,
,公比
.若
是数列
的前
项积,则
取最大值时,
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64d5b1d831630334e494c39d0343872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535fd9605b90ac7f0fed6025be9f851f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.4 | B.5 | C.3或4 | D.4或5 |
您最近一年使用:0次
解题方法
2 . 已知实数
满足约束条件
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a2f03e7aee2d16f7121d4929c7b9861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfeb8b0075f7dcfc571034c2a849e98.png)
A.4 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 设等比数列
的前n项和为
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d71cd3942742c63fc8e4859d7bf2b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb28d9e94c098eb48d50dbc70995082b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 已知数列
的前
项和为
,若
,则
( )
![](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/4c0f2118f2771a5a347f7dab243417ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4487468ab2823d6dbf7f0ebd2eb38.png)
A.0 | B.1 | C.3 | D.![]() |
您最近一年使用:0次
5 . 在等差数列
中,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f966272f7781790ff27e40db6b525253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4be4298fdac1fdfab0fa680c42293c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
6 . 已知函数
,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677e839f2a1993e21e9f580ee8d84bb7.png)
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce71060de4cff6259066e3ea7fc6987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677e839f2a1993e21e9f580ee8d84bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0b3d83a5a1a340b4e00363873033de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
A.1 | B.2 | C.4 | D.8 |
您最近一年使用:0次
7 . 已知各项均为正数的数列
满足
,且
.若当且仅当
时,
取得最小值,且
,则符合条件的实数
组成的集合中的元素个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dce665642ccdde2a9dfac6f19c39a8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77288bfa684c2a9ca00c75743232a0e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c94f127d5f001114e31bf9d997b81d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
解题方法
8 . 已知实数x,y满足
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa777cdf037903902c08c2ccc2ccb5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea782e7b7aa50b3bec8876e7be605946.png)
A.31 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-28更新
|
80次组卷
|
2卷引用:1号卷·2022年高考最新原创信息试卷(四)文数
9 . 在等比数列
中,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e29d972ba27bf676989a5abfb51a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a845936d522ed5306814d7859f6175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
A.9或![]() | B.9 | C.18或![]() | D.18 |
您最近一年使用:0次
10 . 设等比数列
的前
项和为
,且
,则
( )
![](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/b32ad0d27a8070206d1a12ac0a7e393b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/130aab74cff7810ad14ac2480ff5b929.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次