A = `abs[[1 ,2 ,-1],[2 ,1 ,-2],[2 ,-2, 1]]` and find the value

If A=[[1,2,5],[3,4,6]] and B=[[4,0],[2,1]] then find the value of AB.

If A=[[1,2],[4,2]] , find the value of |A^(-1)|

if A=[[1,2,22,1,22,2,1]] then find the value of A^(2)-4A+5I_(3) then find the value of

Evaluate abs([2,4,0],[-1,1,2],[0,-2,1])

If A=[[1,-2],[2,3]] and B=[[1,2,3],[2,3,1]] , then find AB

If A=[[1,-2],[2,3]] and B=[[1,2,3],[2,3,1]] , then find AB.

Matrices A and B Satisfy AB = B^(-1) , where B =[{:(2,-2),(-1,0):}] , find the value of lambda for which lambdaA - 2B^(-1) + 1=O , Without finding B^(-1) .

If A=[[0,1],[1,0],[0,1]] and B=[[0,1,2],[2,1,0]], find AB

If A=[[1,-1],[2,-1]] , B=[[a,1],[b,-1]] and (A+B)^(2)=A^(2)+B^(2) ,then find the values of a and b

If a^2 + 1/a^2 = 102 , then find the value of a - 1/a