(6) ab (d) ab (c) 4 +b1+i 27. ifa and b are two matrices of same order, such that ab =ba, then (a) a is dingonal and b is any matrix (c) a is scalar and b is di

(6) AB (d) AB (c) 4 +B1+I 27. IfA and B are two matrices of same order, such that AB =BA, then (a) A is dingonal and B is any matrix (c) A is scalar and B is diagonal matrix (b) A and B are both diagonal (d) None of the above F Gn Hnl