1) Determine angle between the side of length 2 and the side with length 3 in the isosceles triangle which has one side of length 3 and two sides of length 2.
2) Determine smallest positive number Y such that sin(tan Y)=0.6
3) Determine smallest positive number theta such that Tan{theta}=-5.
4) Find angle between positive horizontal axis and line containing the points (3,6) and (7,3)?
5) Hilly areas frequently have road signs giving percentae grade for road. 5% grade, for example, means that altitude changes 5 feet for each 100 feet of horizontal distance. What percentage grade must be put on road sign where angle of elevation of road is 2 degrees?