名校
1 . 先化简,再求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308ac93baab37dd4d95c4866cd3df2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
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名校
2 . 计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1dc7e3ccd1257b3a60a6e79ee40009a.png)
您最近一年使用:0次
名校
3 . 因式分解
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa106f14236800b0a1f5285fe09c1ba5.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf901a3599c323a59e75305d093374a.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3139490192459123958ae5178dbced8f.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa106f14236800b0a1f5285fe09c1ba5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf901a3599c323a59e75305d093374a.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3139490192459123958ae5178dbced8f.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8648230c21cead1d77e90c90a242add7.png)
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4 . 设
是方程
的一组解,计算:
(1)
;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad0086651e05c716cec1ba31cf09f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821dc5767ac7967687426e4b9c46c918.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b859b72b8127df011d0b3032d2c3ff3e.png)
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5 . 先化简,再求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3fe1b6f8e73f46a9afdc4bb3e934ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5463910e448456501bbdcc79f70a6051.png)
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6 . (1)计算:
.
(2)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fbc17b6131a1d704a6850b86a13e0e.png)
(2)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a8ce1e2d86cc4b582e819782976936.png)
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7 . 已知二次函数
(a为常数).
(1)当
,
时,求
的值;
(2)当
时,二次函数
的最小值为
,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822e1d5acaa60803c97eec89a903183d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7f8363ae7e8fb0020856303ad61514.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a12a30935c79ae769818043a496f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822e1d5acaa60803c97eec89a903183d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
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8 . 设x是实数,不大于x的最大整数叫做x的整数部分,记作
,如
.
(1)
,求
.
(2)解关于x的方程:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c914fe2d453ccda373ee73cea0a4e48.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49dfc03fa00b96f56fa16e34e1526dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7347e223073fc070407659a4bacb45f6.png)
(2)解关于x的方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac67a507d071c1f3c62d7d95502a4a5.png)
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9 . 已知
为方程
的解,
,
(1)求证:
.
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99606defee81cacc6652482953b6818c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911958db7bf41c17393a895b6743fac4.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c4b1b48220a0c16bc22c1dfaa1acc0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e33e8fca2d3aa21ff0f7ef6962e66651.png)
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10 . 对
因式分解
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408f5fdc9cd1e29606f97a56f1d9b4f0.png)
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