1 . 计算:
(1)
;
(2)
;
(3)
;
(4)
(用乘法公式计算).
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a1a596077197a3579f13abafe6f887.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e110f36bc1e947b02ad07a2e1fb0ae4.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02bd57bee93a49e226391cd91a5e2c3.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a278baa79a30b8957a6d034379a4464.png)
您最近一年使用:0次
2 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fff8883f1316711853067cf1cd8753.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a1a684b895ab1f04d5aaa647d9024c.png)
(3)
(用乘法公式简便计算)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fff8883f1316711853067cf1cd8753.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a1a684b895ab1f04d5aaa647d9024c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f6b09543e52eb61f86f434aec48fb8.png)
您最近一年使用:0次
名校
3 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ced6997b4e50defea5e07520ffcbbe6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632169717d80120ca42b59a1189e8278.png)
您最近一年使用:0次
4 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5dc74ad1341bf0530b9d658adaeb73.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741b297a4a4915835ebb5f7dd1de97cb.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/079b5b3c9463a445eae1d350f934354c.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5dc74ad1341bf0530b9d658adaeb73.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741b297a4a4915835ebb5f7dd1de97cb.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/079b5b3c9463a445eae1d350f934354c.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a41f7d7cad9bd57d2fb550cb3ae56bb.png)
您最近一年使用:0次
5 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13447984c81b0c03abed7ebfd06f7bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
您最近一年使用:0次
6 . 化简
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/814114efe7adf2c54b1acd1e5c63749e.png)
您最近一年使用:0次
7 . 下列运算正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
8 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33edfc10e48506605345787ff26ebed5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33edfc10e48506605345787ff26ebed5.png)
您最近一年使用:0次
9 . 下列运算正确的是( )
A.![]() | B.![]() |
C. ![]() | D.![]() |
您最近一年使用:0次
10 . 一个长方体的长、宽、高分别为
、
、
,它的体积等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6ddb3766b5215c115a0abf597598aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284af25442151243df744528fe9ce188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b4d3176035989318ed293c25fe6369.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次