Saved Bookmarks
| 1. |
(i) ff2 tan 30 cos60° tan 45o60° cot 601+ tan 301- tan2 30° |
|
Answer» tan30°=1/√3tan60°=√3tan45°=1cos60°=1/2cot60°=1/√3 substitute all{2(1/√3)(1/2)}/{1+(1/√3)^2} - {1 -1/2(1/2)(1/√3)}/{1-(1/√3)^2}=√3/4 - (4√3-1)√3/2=√3(1-8√3+2)/2=(3√3 - 24)/2 |
|