题目
题型:解答题难度:一般来源:不详
(1)
3 | 8 |
0 |
|
(2)|
3 |
2 |
3 |
答案
3 | 8 |
0 |
|
=2+0-0.5
=1.5;
(2)|
3 |
2 |
3 |
=
3 |
2 |
3 |
=2-
2 |
核心考点
举一反三
A.2a-7 | B.2a-1 | C.1 | D.7 |
3 | 8 |
0 |
|
3 |
2 |
3 |
3 | 8 |
0 |
|
3 |
2 |
3 |
3 |
2 |
3 |
2 |
A.2a-7 | B.2a-1 | C.1 | D.7 |
A.、A、B两点的距离 |
B.、A、C两点的距离 |
C.、A、B两点到原点的距离之和 |
D.、A、C两点到原点的距离之和 |
1 |
2 |
1 |
3 |
1 |
2 |
1 |
2007 |
1 |
2006 |