If $A$ and $B$ are two matrices of the same order then $(A+B)^{2}=A^{2}+B^{2}+2 A B$ will be true\

Question

Professor PC Thomas Classes · Answer

B$)(\mathrm{A}+\mathrm{B})^{2}=$ $$ =A^{2}+A B+B A+B^{2} $$ $=A^{2}+2 A B+B^{2}$ if $A$ and $B$ commute\