in my school we do it with out vectors and the results are different with same problem. for fx = 300cos0+400cos30-250cos4/5 fy= 300sin0+400sin30+250sin3/5 for fx= 396.43N for fy= 202.61N for R= 495.20N THEETA = 27.07 degree please do it as i have done and tell if there is a wrong. final answers should be the same because this is not math this is statics and it is important for buildings and stuff u know thanks