x
| ||||
x
|
xy |
xy |
1 |
2 |
1 |
2 |
xy |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
6 |
1 |
2 |
1 |
2 |
2 |
x
| ||||
x
|
-
| ||
3
|
| ||
3 |
| ||
3 |
6
|
3 | 82 |
2 |
3 |
1 |
3 |
lg8+lg125-lg2-lg5 | ||
lg
|
1 |
3 |
2 |
3 |
3 | 125 |
tan80°-tan20°+tan(-60°) |
tan80°tan20° |
1 |
2 |
0.1 |
1 |
3 |
5 |
9 |
4 |
3 |
1 |
2 |
| ||
2 |
1 |
2 |
27 |
4 |
1 |
4 |
2 |
y |
x |
2 |
3 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
6 |
5 |
6 |
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