若
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a7aa422199648094e67ddc51cbdb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d643dc1987904038b0e230f0b34d92.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2018-11-14 07:02:42
|
【知识点】 已知字母的值 ,求代数式的值解读
相似题推荐
单选题
|
适中
(0.65)
【推荐1】已知4y2+my+9是完全平方式,求(6m4﹣8m3)÷(﹣2m2)+3m2的值是( )
A.±48 | B.±24 | C.48 | D.24 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】规定:
,
,例如:
,
,下列结论中,正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
能使
成立的
的值为
或
;
若
,则
;
若
,则
;
式子
的最小值是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be021c60b4498dfb6bf9e6e76e8ccb74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0509919458d8fd954fee8f4ce63813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a59d06fc182d54bb0c51b39fdc4dea98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf33ce04e5eeb34a328e38afd6e5575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204631611e8055443f7a4a9eebed6e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf937cd469db1fe08e82724baeab7b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2056bbd115039cb72e02747cf4e8b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cf3bb88f5257ec1a7301403ac0af59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2fe51f5ed48217b4c84923e3032593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a871f5f9ab021b9a6c900e1d103fe94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e636bddc1a3d7c006ac304e96cd2551.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac64bd42d31654076380ab3af403100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
A.(1)(2)(3) | B.(1)(2)(4) |
C.(1)(3)(4) | D.(1)(2)(3)(4) |
您最近一年使用:0次