名校
1 . 下列命题正确的是________ .(填写正确的序号)
①在等差数列
中,有
,则
;
②已知数列
是正项等比数列,且
,则
的值可能是
;
③已知函数
是定义在R上的奇函数,且对任意
,都有
成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b6ed8cbd4162259985201ddfa4a049.png)
.
①在等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788beef99e78bcb25b193a0e50362d9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c634e9a8afd9e6c931307dfaabb06810.png)
②已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3469ea4b3664ef316692458c96ac68d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
③已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e04b4cd16224102ef696222caa56ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b6ed8cbd4162259985201ddfa4a049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afcc9c8a1885dad421eb332afc8c6039.png)
您最近一年使用:0次
2020-11-20更新
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194次组卷
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2卷引用:宁夏六盘山高级中学2021届高三上学期第二次月考数学(文)试题