题目内容
计算:
(1)(
-1)0+|-3|-
(2)(x+1)÷(2+
).
(1)(
| 3 |
| 4 |
(2)(x+1)÷(2+
| 1+x2 |
| x |
(1)原式=1+3-2
=2;
(2)原式=(x+1)÷
=(x+1)×
=
.
=2;
(2)原式=(x+1)÷
| 2x+1+x2 |
| x |
=(x+1)×
| x |
| (x+1)2 |
=
| x |
| x+1 |
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题目内容
| 3 |
| 4 |
| 1+x2 |
| x |
| 2x+1+x2 |
| x |
| x |
| (x+1)2 |
| x |
| x+1 |