give the actual solution with complete steps in numerical values For the roof truss shown in the figure below. $($All elements having $E=210$GPa;$A=10$

$\{$:${10}^4{m}^2)$

$($a$)$ Determine the nodal displacements, reaction forces and the member forces in each

element $($analytic hand calculation$)$

$($b$)$ Develop a 'MATLAB code' and repeat the same exercise to evaluate the nodal

displacements, reaction forces and the member forces in each element