Saved Bookmarks
| 1. |
in 35°\? _ 1००8 55cos 55° sin 35°2) - 2०08 60 का मान है |
|
Answer» (sin35/cos55)²+(cos55/sin35)²-2cos60 =[cos(90-35)/cos55]²+[cos55cos(90-35)]²-2cos60 =(cos55/cos 55)²+(cos55/cos 55)²-2cos60 =1+1-2×1\2=1+1-1=1 |
|