If `A|(1, 4, 7),( 2, 6, 5),( 3,-1, 2)|a n dB=d i ag(1,2,5)` , then trace of a matrix `A B^2` is

If A=[1 4 7 2 6 5 3-1 2] a n d B=d i ag(125) , then trace of matrix A B^2 is (a)74 (b)75 (c)529 (d)23

If A=[[-2,3,8],[1,5,5],[0,2,4]], then trace of matrix A is

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

If A = { 1,2,3,4 }, B = { 2, 4, 5,6 } , U = { 1,2,3,4,5,6,7} then A' ∩ B'

If A=[{:(1,-5),(-3," "2),(4,-2):}]" and "B=[{:(3," "1),(2,-1),(-2," "3):}] , find the matrix C such that A+B+C is a zero matrix.

If A = { 1 , 2 , 3 , 4 , 5 , 6 , 7 ] And B = { 2 , 3 , 5 , 7 } Then prove that A ∩ B = B

If A=[(2, 0,-3),( 4, 3, 1),(-5, 7, 2)] is expressed as the sum of a symmetric and skew-symmetric matrix, then the symmetric matrix is (a) [(2, 2,-4 ),(2, 3, 4),(-4, 4, 2)] (b) [(2, 4,-5),( 0, 3, 7),(-3, 1, 2)] (c) [(4, 4,-8),( 4, 6, 8),(-8, 8, 4)] (d) [(1, 0 ,0 ),(0 ,1 ,0),( 0, 0, 1)]

Let A+2B=[{:(2,4,0),(6,-3,3),(-5,3,5):}] and 2A-B=[{:(6,-2,4),(6,1,5),(6,3,4):}] , then tr (A) - tr (B) is equal to (where , tr (A) =n trace of matrix x A i.e. . Sum of the principle diagonal elements of matrix A)

If A=[(1,4),(3,2),(2,5)], B=[(-1,-2),(0,5),(3,1)] , find the matrix D such that A+B-D=0 .