1. This MATLAB code will raise an error: v = [0,1;2,5); w=[0,4,6]; u = v.13+w; true false 2. The MATLAB code x=1; f = (2*(x-1)*sin(x*pi/2)/(4*(x+1)); shows the value 0. true false 3. Linear stress analysis of a structural problem involves the solution of a linear system of algebraic equations. true false 4. In the least-squares method, the test function is identical to the residual function. true false 5. In the weighted residuals method, a larger number of ansatz functions does increase the required computational effort. true false 6. The strong form implies that the associated numerical solution is more accurate than that of the weak form. true false 7. The Dirichlet boundary condition can be imposed at algebraic level, modifying the discrete matrix and discrete force vector in the displacement-based formulation. true false 8. The number of nodes in a finite element mesh is always equal to the number of degrees of freedom used to represent the displacement field. true false 9. The elastic stiffness matrix is involved in linear stress analysis. true false 10. The local coordinate z of a 2-node (line) finite element must be defined in the range [-1, +1]. true false