A prismatic continuous beam is supported on columns and is subjected to a uniformly distributed load of w=50 kN/m (mostly dead load). The two exterior spans are 5.5 meters (center to center span) and all the interior spans are 6.0 meters (center to center span). The width of all the supports is 400 mm. a- Check if the requirements necessary to apply the ACI coefficients (presentation 2b) are applicable. b- Assuming they are applicable, calculate the two negative moments and the positive moment in the exterior spans c- Assuming they are applicable again, calculate the maximum negative moment and the maximum positive moment in the interior spans