题目
题型:不详难度:来源:
cos60° |
1+sin60° |
1 |
tan30° |
cos45° |
sin45° |
答案
| ||||
1+
|
1 | ||||
|
| ||||
|
=2-
3 |
3 |
=1
核心考点
举一反三
sin260°-tan30°cos30° |
tan45°-4cos230° |
tanα+tanβ |
1-tanαtanβ |
tan260°-2tan60°+1 |
cos60° |
1+sin60° |
1 |
tan30° |
cos45° |
sin45° |
| ||||
1+
|
1 | ||||
|
| ||||
|
3 |
3 |
sin260°-tan30°cos30° |
tan45°-4cos230° |
tanα+tanβ |
1-tanαtanβ |
tan260°-2tan60°+1 |