Saved Bookmarks
| 1. |
If 4 cos² teta -1 =0find the acute angle teta hence find the value of 2 tan teta /1-tan² teta |
|
Answer» cos^2 THETA - 1 = 0 cos^2 teta = 1/4 cos teta = ROOT of 1/4 cos teta = 1/2 cos teta = cos 60°Therefore, teta = 60°Now,2 TAN teta / 1- tan^2 teta= 2 tan 60°/ sec^2 teta = 2 ( root 3)/ 2^2 = 2root 3/4 = root 3/2Hope it will HELPS you |
|