I really need help to solve these problems.

2. (20 points) Consider the following vector and matrix 1 1 l 0 {s}1 :3, [91163 1 i 0 'E 'E 3 2+3 0 0 3 Dened on the rectangle 2 S :1: 5 2, 1 S y S 1, where E is a constant. (3) Find 996's) = {B}T[D]{B} - (b) Find 1 2 k=/_1/_29(z.yldxdy All steps towards solving each of the double integral need to be shown. 6 (c) Find {c} = {5%} . 3%