Example : ll let a be 3 * 3 matrix with real entries such that det (a) = 6 and the trace of a is 0. if det (a +)=0, wheredenotes the 3 x 3 identity matrix, then

Example : ll Let A be 3 * 3 matrix with real entries such that det (A) = 6 and the trace of A is 0. If det (A +)=0, wheredenotes the 3 X 3 identity matrix, then the eigenvalues of A are (a)-1,2,3 (6)-1,,3 (d)-I,-2, 3 (C) 1,