题目内容
(1)计算:(
)2-(
)2+
.
(2)计算:
×
÷
÷3
+(
-1)°.
| 5 |
| 13 |
| 3 | 125 |
(2)计算:
| 13 |
| 2 |
| 13 |
| 2 |
| 2 |
(1)原式=5-13+5
=-3;
(2)原式=
×
×
×
+
-1
=
-
.
=-3;
(2)原式=
| 13 |
| 2 |
| 1 | ||
|
| 1 | ||
3
|
| 2 |
=
| 2 |
| 2 |
| 3 |
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题目内容
| 5 |
| 13 |
| 3 | 125 |
| 13 |
| 2 |
| 13 |
| 2 |
| 2 |
| 13 |
| 2 |
| 1 | ||
|
| 1 | ||
3
|
| 2 |
| 2 |
| 2 |
| 3 |