Saved Bookmarks
| 1. |
tan-1 (1/4) + tan-1( 2/9) is equal to ________.(a) 1/2 cos-1(3/5)(b) 1/2 sin-1(3/5)(c) 1/2 tan-1(3/5)(d) tan-1 (1/2) |
|
Answer» (d) tan-1 (1/2) |
|