Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Let `2A+B=[[1,0,3],[-1,4,6],[2,5,2]]` , `A-2B= [[2,-1,5],[0,3,6],[1,2,1]]`Then Tr(A)-Tr(B) has the value equal to (where Tr(A) denotes the trace of matrix A) - Sarthaks eConnect

Let `2A+B=[[1,0,3],[-1,4,6],[2,5,2]]` , `A-2B= [[2,-1,5],[0,3,6],[1,2,1]]`
Then Tr(A)-Tr(B) has the value equal to (where Tr(A) denotes the trace of matrix A)

Let `2A+B=[[1,0,3],[-1,4,6],[2,5,2]]` , `A-2B= [[2,-1,5],[0,3,6],[1,2,1]]`

Then Tr(A)-Tr(B) has the value equal to (where Tr(A) denotes the trace of matrix A)