Question 1024739
If {{{abs(A) = 64}}} and A is order 3, then {{{abs(2A) = 2^3abs(A) = 8*64 = 512}}}.

For a square matrix A, {{{abs(A) = abs(A^T)}}}, so if {{{abs(A) = 225}}} then {{{abs(A^T) = 225}}} also.