Plz help how I am supposed to do these
1. In triangle ABC, angle BCA = pi/6, AB = and AC = .
2. In triangle ABC, angle BCA = pi/6, AB = and AC = .
3. In triangle ABC, angle BCA = pi/6, AB = and AC = .
Find the sum of all distinct possible values of BC. If there are no possible values, enter 0 .
