题目内容
先化简
-(
-
),再求得它的近似值为______(精确到0.01,
≈1.414,
≈1.732).
|
| 1 |
| 6 |
| 24 |
| 3 |
| 2 |
| 12 |
| 2 |
| 3 |
原式=
-(
-
)
=
-(
-
)
=
-
+3
=3
≈3×1.732
≈5.196
≈5.20
|
(
|
(
|
=
|
|
| 27 |
=
|
|
| 3 |
=3
| 3 |
≈3×1.732
≈5.196
≈5.20
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