若
的展开式中
项的系数是
,则实数
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/964d8b1bce2dd1d938b297ff706eea66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d800f03de80068a1172beac3a2c75587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1480672ec92c4698aac745b029ad8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2020-06-22 19:10:03
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】若二项式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918525004de4d772192b2242c5d6e791.png)
展开式中含有常数项,则
的最小取值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918525004de4d772192b2242c5d6e791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a31419e0523278fb897fc050d234e9f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.4 | B.5 |
C.6 | D.7 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐2】
二项展开式的第三项系数为15,则
的二项展开式中的常数项为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf4f34a3c47841ea620569380d1d634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf4f34a3c47841ea620569380d1d634.png)
A.1 | B.6 | C.15 | D.20 |
您最近一年使用:0次