with detailed solution

4. (12 points) Evaluate the following determinants and justify your answers. 1 2 3 a a 2 sin or cosa sin(o + 0) 2 2 4 5 1 a (a) sin B cos B sin(B + 0) (b) (c) 3 3 3 4 a 4 sin y cosy sin(y + 0) 4 4 4 5 a a 5 5 5 5 5