If `A= [[3,1],[-1,2]]`,find `A^2-5A+7I`

If A=[[3,1],[-1,2]] prove that A^2-5A+7I=O ,where I is unit matrix of order 2.

If A = [[3,1],[-1,2]] then show that: A^2-5A+7I = 0 .

If A=[[7,3,1],[-2,-4,1],[5,9,1]] ,find (A^T)^T

If A = [[1,0,1],[0,2,3],[1,2,1]] and B = [[1,2,3],[1,1,5],[2,4,7]] , then find a matrix X such that XA = B .

If A=[[1,-2],[5,6]],B=[[3,-1],[3,7]] ,Find AB-2I ,where I is unit martrix of order 2.

If A=[[7,3,0],[0,4,-2]],B=[[0,-2,3],[2,1,-4]] ,then find 5A^T-5B^T

If A+I=[[1,2,0],[5,4,2],[0,7,-3]] find the product (A+I)(A-I)

If A=[[1,2,0],[5,4,2],[0,7,-3]] find the product (A+I)(A-I)

Find the inverse of A=[[1,3,3],[1,4,3],[1,3,4]] and B = [[1,2,3],[1,1,5],[2,4,7]] then, find a matrix X such that XA = B .

Solve the following: A=[[2,3,1],[-1,-1,0]], B=[[-4,3,1],[5,7,8]] Find A+B