1 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/543520fe35d5b3e4114b3c09b1de2db1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb0e67d903473bc5537ed99a74deb3a6.png)
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2 . 化简下列各式:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eea059262a504e602db5582de080f93.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab3dca2d957190916d56e4eafbfabd6.png)
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3 . 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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解题方法
4 . 设复数
(其中
),
.
(1)若
,求
的值;
(2)若
是实数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c88701826f48dd1ea7a4869cf77d5813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab15cfa691e78c4caf7d23046df9eca.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da4e6752d8c8a0705194f2b2f16ab5d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34b88f343ca5a4c29057465541b9cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0a5099de64b6e1caca837bcd8a3d34.png)
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6 . 解下列一元二次不等式:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea2cffed1bfef487bbdd6a1e468489d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595df5ae89ccfca0069a5380e9af7a2a.png)
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7 . 已知
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d394016b9fecac73f38cbc4ff18dee2.png)
(1)求
,
的值;
(2)求
,
的值
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d394016b9fecac73f38cbc4ff18dee2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e8a621ef4f63633a8a70ababe0ca15.png)
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8 . 计算(1)
;(2)
;(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/543520fe35d5b3e4114b3c09b1de2db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/393c919ea20535d004ed6b2eb7859538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb0e67d903473bc5537ed99a74deb3a6.png)
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9 . 计算:(用数字作答)
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403d128ea029ebbe0f61eea8874a5f43.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be0b51445e7a6725b06ffb0654ba77f7.png)
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