tan10°+tan50°+tan120° |
tan10°•tan50° |
A.-1 | B.1 | C.-
| D.
|
tan10°+tan50°+tan120° |
tan10°•tan50° |
tan10°+tan50° |
tan10°•tan50° |
tan120° |
tan10°•tan50° |
tan60°(1-tan10°tan50°) |
tan10°•tan50° |
tan60° |
tan10°•tan50° |
| ||
tan10°tan50° |
3 |
| ||
tan10°tan50° |
3 |
π |
3 |
π |
6 |
π |
4 |
π |
3 |
1 |
2 |
| ||
2 |
π |
2 |
3 |
π |
2 |
π |
2 |
π |
4 |
1 |
3 |
A.-
| B.-
| C.
| D.
|
3 |
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