Given is the solution vector $ \ mathbf {Q} $ for a beam divided into three finite elements as in the diagram below. Using FEM calculate the deflection value for $ X-9 \ mathrm {~ m} $. $ \ mathbf {Q} = \ left \ {\ begin {array} {llllllll} 0 & 0 & 2,5 & 2 & 0 & 6 & 0 & 0 \ end {array} \ right \} \ cdot 10 ^ { 2} $