Solve the below:
Q: Three forces are applied to a bracket. The directions of the two 30-lb forces can vary, but the angle between these forces is always 50°. Determine the range of values of a for which the magnitude of the resultant of the forces applied to the bracket is less than 120 lb.
![2137_Magnitude of the resultant of the forces.jpg](https://secure.tutorsglobe.com/CMSImages/2137_Magnitude of the resultant of the forces.jpg)