Which of the following statements are TRUE?
P.The eigenvalues of a symmetric matrix are real
Q.The value of the determinant of an orthogonal matrix can only be +1
R.The transpose of a square matrix A has the same eigenvalues as those of A
S.The invese of an ‘n x n’ matrix exists if and only if the rank less than ‘n’
- P and Q only
- P and R only
- Q and R only
- P and S only