1. The problem statement, all variables and given/known data Two cables are attached to a sign at point A to steady the sign as it is being lowered. Using Trigonometry, determine a) the magnitude and direction of the smallest force P for which the resultant R of the two forces applied at A is vertical, b) the corresponding magnitude of R 2. Relevant equations Use Law of cosines (R^2 = Q^2 + P^2 - 2QPcos(theta)) and Law of sines P/sin(opp. angle) = Q/sin(opp. angle) 3. The attempt at a solution diagram is shown in attachment. I only have one magnitude and one angle and I'm supposed to get an angle alpha so that P is the min.