How to find the range of resultant force of three forces

How to find the range of resultant force of three forces

The maximum of the resultant force of the three forces is the sum of the three forces
There are two cases of the minimum value of resultant force: when the three forces satisfy the triangle trilateral relationship and can form a triangle, the minimum value of resultant force is zero; otherwise, the minimum value of resultant force is equal to the size of the largest force minus the size of the other two forces