Use the theorem given in New: 9.2.12 / Old: 8.2.14 to find a
square root of the matrix of 9.2.5/8.2.5. That means you should
find a matrix so that is the matrix of question
9.2.5/8.2.5. Indicate . Verify by multiplication that
indeed gives the given matrix.
Show that if you simply take the square root of each coefficient in
the original matrix, the square matrix does not give the
original matrix.
Note: the eigenvalues and eigenvectors of the 9.2.5/8.2.5 matrix
are: