求
的值,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcf75e604e92e26de871d97396292c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c5a2a0320e34320db6055e31f0f8fc.png)
更新时间:2018-07-16 20:38:14
|
相似题推荐
解答题-计算题
|
适中
(0.65)
【推荐1】先化简再求值:
,请选择适当的a值带入求值,其中
且a为整数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62baec2c1a04900b4c02ec50d634491d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9326f212a0f18acc0d0b75c67a4d216f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知
,
是两个连续的正偶数,
,
,
.
(1)当
时,
__________;
(2)当
为任意正偶数时,
的值是定值吗?如果是,求出这个定值,如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7961cbe98aac6a5fdee94582c341b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2063d52158533273e5ef881695dc59b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f002b69ad08c512395dec45759ebe63.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次