Q.16) let m be the vector space of all 3 x 3 real matrices and let 62 a = 0 2 o which of the following are subspaces of m ? \o 0 3/ june-201 a) {x e m:xa = ax}

Q.16) Let M be the vector space of all 3 x 3 real matrices and let 62 A = 0 2 o which of the following are subspaces of M ? \O 0 3/ June-201 a) {X E M:XA = AX} b) E M:X + A = A +X} c) {XE M: trace(AX) = 03 d) {X E M: det(AX) = 0}