Saved Bookmarks
| 1. |
4 sin2 60° +3 tan2 30 8 sin 30° cos 45° |
|
Answer» ong>ANSWER: Step-by-step explanation: Given
4sin²60° + 3tan²30° - 8sin45° . cos45°
4 . ( √3 / 2 )² + 3 ( 1 /√3 )² - 8 ( 1 /√2 ) . ( 1 /√2 )
= 4 × 3 / 4 + 3 × 1 / 3 - 8 × 1 / 2
= 3 + 1 - 4
= 3 - 3
= 0 |
|