题目内容
计算:
(1)-
(2)±
(3)-
(4)
.
(1)-
| 64 |
(2)±
| 0.81 |
(3)-
1
|
(4)
| 262-102 |
(1)原式=-8;
(2)原式=±0.9;
(3)原式=-
=-
;
(4)原式=
=
=
=24.
(2)原式=±0.9;
(3)原式=-
|
=-
| 5 |
| 4 |
(4)原式=
| (26+10)(26-10) |
=
| 36×16 |
=
| 242 |
=24.
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