Homework 8 Homework 8 Problem 2 A triangle ABC has interior angle a at the vertex A, such that cos(a) = = and interior angle B at the vertex B, such that cos(B) = Find the cosine of the third interior angle y at the vertex C. If now A is the point [2, 3] in the plane and B is the point [5, 7], determine where the point C is (there should be two possible answers) and sketch the resulting triangle(s)