问题
解答题
计算: (1)(1+
(2)(
(3)(
|
答案
(1)原式=(1-3)×(1-2)=2;
(2)原式=[(
3 |
2 |
3 |
2 |
3 |
2 |
(3)原式=[(
3 |
6 |
2 |
3 |
6 |
2 |
=(
3 |
6 |
2 |
=3-6
2 |
=-9-6
2 |
计算: (1)(1+
(2)(
(3)(
|
(1)原式=(1-3)×(1-2)=2;
(2)原式=[(
3 |
2 |
3 |
2 |
3 |
2 |
(3)原式=[(
3 |
6 |
2 |
3 |
6 |
2 |
=(
3 |
6 |
2 |
=3-6
2 |
=-9-6
2 |