Given the matrix `A=[(x,3,2),(1,y,4),(2,2z)].` If `xyz=60 and 8x+4y+3z=20,` then `A(adjA)` is equal to (a) `[(6,4,0,0),(0,6,4,0),(0,0,6,4)]` (b) `[(8,8,0,0),(0,8,8,0),(0,0,8,8)]` (c) `[(6,8,0,0),(0,6,8,0),(0,0,6,8)]` (d) `[(3,4,0,0),(0,3,4,0),(0,0,3,4)]`

If P(A)=0.4,P(B)=0.8 and P(B/A)=0.6, then P(AcupB) is equal to

The matrix [[0,2,-4],[-2,0,-6],[4,6,0]] is

If, A=[(1,1,2),(0,-3,5),(-2,3,4)] ,then is 4A=[(4,4,8),(0,-12,20),(-8,12,16)] ?

If f(x)=x^2+4x-5 and A=[(1,2),(4,-3)] then f(A)= (A) [(0,-4),(8,8)] (B) [(0,-4),(8,8)] (C) [(1,1),(1,0)] (D) [(8,4),(8,0)]

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)]

[" 2.Let matrix "A=[[1,y,4],[2,2,z]]" ; if "xyz=2 lambda" and "8x+4y+3z=lambda+28," then "(adj A)" A equals: "],[[" (A) "[[lambda+1,0,0],[0,lambda+1,0],[0,0,lambda+1]]," (B) "[[lambda,0,0],[0,lambda,0],[0,0,lambda]]],[" (C) "[[lambda^(2),0,0],[0,lambda^(2),0],[0,0,lambda^(2)]]," (D) "[[lambda+2,0,0],[0,lambda+2,0],[0,0,lambda+2]]]]

Inverse of the matrix {:[(0.8,0.6),(0.6,0.8)]:} is

Find the matrix A such that : [(1 ,0 ),(0 ,1)]A=[(3 ,3 ,5 ),(1, 0 ,1)] (ii) A[(1, 2, 3 ),(4, 5 ,6)]=[(-7,-8,-9 ),(2, 4 ,6)]

The coordinates of the point equidistant from the points A(0, 0, 0), B(4, 0, 0), C(0, 6, 0) and D(0, 0, 8) is