if `[{:(3,2),(7,5):}]A{:[(-1,1),(-2,1):}]={:[(2,-1),(0,4):}]` then trace of A is equal to

If A=[{:(2,7),(1,5):}] then that is A + 3A^(-1) equal to ?

If [{:(2,1), ( 3,2):}] A [ {:(-3,2), ( 5, -3):}] = [{:( 1, 0), ( 0, 1):}], then the matrix A is equal to:

Find the matrix x for which [(3,2),(7,5)]xx[(-1,1),(-2,1)]=[(2,-1),(0,4)]

If [(2,1),(7,4)]A[(-3,2),(5,-3)]=[(1,0),(0,1)] then matrix A equals

If [ (1, 2),(-2,-b)]+ [(a,4),(3,2)]=[(5,6),(1,0)] , then a^(2) + b^(2) is equal to

Find the matrix X satisfying. [(3,2),(7,5)] X [(-1,1),(-2,1)] = [(2,-1),(0,4)]

IF A=[{:(7,-2),(-1,2),(5,3):}],B=[{:(-2,-1),(4,2),(-1,0):}] then find AB' and BA'

IF A=[{:(7,-2),(-1,2),(5,3):}].B=[{:(-2,-1),(4,2),(-1,0):}] then find AB' and BA'