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Math Help - Displacements at the nodes and for the forces

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    Displacements at the nodes and for the forces

    Set up and solve for the displacements at the nodes and for the forces transmitted by each of the
    elements. Follow the following sequence of steps:
    Number the nodes
    Determine AE/L for each element
    Determine the 4x4 elemental stiffness Ke for each element
    Expand each Ke to the global level and add to the global stiffness matrix
    Form the global load matrix
    Enforce the constraints
    Solve the equations
    Calculate the forces transmitted in each member
    Verify nodal equilibrium and calculate reactions
    All areas = 2 in2, All Es = 30x106 psi

    Please Check the Attachment for the picture!

    Thank You and Help would be greatly appreciated.
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