Saved Bookmarks
| 1. |
What is the value of(sin34^(@)cos236^(@)-sin56^(@)sin124^(@))/(cos28^(@)cos88^(@)+cos178^(@)sin208^(@))? |
|
Answer» `-2` `=(sin34^(@)(-cos56^(@))-sin56^(@)cos34^(@))/(cos28^(@)SIN2^(@)+COS2^(@)sin28^(@))` `(-sin34^(@)cos56^(@)-sin56^(@)cos34^(@))/(SIN(28^(@)+2))` `=-(sin(34^(@)+56^(@)))/(sin30^(@))=(-SIN90^(@))/(sin30^(@))=(-1)/(1/(2))=-2` |
|