a$)$ Develop the global structural stiffness matrix $K$ considering that the axial stiffness of

both truss members is identical, i$.$e$.(A\frac{E}{L}{)}_1=(A\frac{E}{L}{)}_2=100ki\frac{p}{i}n.$

b$)$ Report the matrix equation you would use to solve for the displacements at the

unconstrained degrees of freedom.

c$)$ Report the matrix equation you would use to solve for the unknown reactions.

Note that all members are axial members and deflections are small. You do not need to

solve the matrix equations for displacements or reactions.