问题:
解答下列各题:
(1)计算:
8
-|-2
2
|+
3
•tan60°;
(2)化简:m(m-1)+(m 2-m)÷m+1;
(3)解方程:
4
x+1
=
1
x-1
.
解答下列各题:
(1)计算:
-|-2
|+
•tan60°;
(2)化简:m(m-1)+(m 2-m)÷m+1;
(3)解方程:
=
.
(1)计算:
8 |
2 |
3 |
(2)化简:m(m-1)+(m 2-m)÷m+1;
(3)解方程:
4 |
x+1 |
1 |
x-1 |
参考答案: