3 | -64 |
9 |
|
3 | 1-
| ||
(-
|
3 | -0.027 |
144 |
3 | -3
| ||
|
3 | 5-
| ||
3 | -1 |
1 |
2 |
1 |
5 |
0 |
2 |
3 |
2
|
6 |
2 |
2 |
6 |
1 |
2 |
1 |
2 |
2 |
3 |
2 |
3 |
3 |
2 |
1 |
3 |
5 |
3 |
1 |
2 |
3 |
2 |
2 |
3 |
3 |
2 |
6 |
2 |
2 |
6 |
6 |
3 | 8 |
172-152 |
1-
|
3 | -27 |
(-3)2 |
3 |
(-6)2 |
3 | 27 |
5 |
| ||||
|
5 |
81 |
3 | -27 |
(-
|
2 |
3 |
2 |
3 |
A.无理数与无理数的和一定还是无理数 |
B.无理数与有理数的和一定是无理数 |
C.无理数与有理数的积一定仍是无理数 |
D.无理数与有理数的商可能是有理数 |
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