Saved Bookmarks
| 1. |
Given 15 cotA=8, find sinA and secA |
| Answer» Given, 15cotA=8CotA=8/15CotA=AB/BCAB=8,BC=15In triangle ABC,By Pythagoras theorem,AC^2=AB^2+BC^2=(8)^2+(15)^2=64+225=289AC=√289AC=17 unitsSinA=BC/AC =15/17SecA=AC/AB =17/8 | |