Question

Given a triangle ABC with sides a = 7, b = 8 and c = 5. If the value of the expression (∑sinA)/(∑cot(A/2)) can be expressed in the form P/q where p, q ∈ N and p/q is in its lowest form find the value of (p + q).

Answer 1

 a = 7, b = 8, c = 5

Calculating value p + q = 10