Q.45 let a be a 3 x 3 matrix with real entries. if three solutions of the linear system of differential equations t(t) = ar(t) are given by e+2et 1 -2e -e+2e' e

Q.45 Let A be a 3 x 3 matrix with real entries. If three solutions of the linear system of differential equations t(t) = Ar(t) are given by e+2et 1 -2e -e+2e' e- ezt -et- e -e+e Le+ nd e2 +e then the sum of the diagonal entries of A is equal to .