Saved Bookmarks
| 1. |
Evaluate - cos 45°/sec30°+cosec30° |
|
Answer» Step-by-step EXPLANATION: Let's WRITE the values first. sec 30 = 2 / root 3 cosec 30 = 2 Therefore, (cos45) ÷ (sex 30 + cosec 30) = (1/root2) ÷ (2/root30 + cosec30) = root 3 / 2root2 + 2root6 conjucating,
= - (root6 - 4 root2) / 8 |
|