Triangle rst is a right triangle with m< s=90 degrees
rs=24 cosr=12/13 find cot r
5/12
5/12
12/5
triangle rst is a right triangle with m< s=90 degrees
rs=48 cos r=24/25 find sin r
7/24
25/24
7/25
solve the equation for 0 ≤theta ≤2 pie : sin theta cos theta - cos theta=0
0,pie
pie/2,3pie/2
pie/2,-1