If `X-Y=[1 1 1 1 1 0 1 0 0]` and `X+Y=[3 5 1-1 1 4 11 8 0]` , find `X` and `Y` .

If 2[3 4 5x]+[1y0 1]=[7 0 10 5] , find x and y .

If D= |[1,1,1],[1,1+x, 1],[1,1,1+y]| for x ne 0, y ne 0 then D is

If {:2[(3,4),(5,x)] + [(1,y ),(0,1)] = [(7,0),(10,5)] , find (x-y).

If Y=[{:(4,3),(2,5):}]and3X-Y=[{:(5,0),(1,1):}] then find X.

If x > 0, y >0, z > 0 and x +y + z = 1 , prove that (1+x)(1+y)(1+z)ge 8(1-x) (1-y) (1-z)

If A = [(1,2,0),(-2,-1,-2),(0,-1,1)] , find A^-1 using A^-1 solve the equations. X-2y = 10, 2x - y - z = 8, -2 y + z = 7

Find x and y if :- 2[(1, 3),(0, x)]+[(y, 0),(1, 2)]=[(5, 6), (1, 8)] .

If x+2y=[[2,0,3],[1,-1,1]] and 2x-y=[[1,-4,-5],[0,2,-1]] ,then

If X= [(2,3,0),(1,-1,5)] ,Y= [(-1,-2,3),(-1,0,2)] ,Z= [(0,4,-1),(5,6,-5)] find 3X+4Y-Z

If D = |(1,1,1),(1,1 +x,1),(1,1,1 +y)| " for " x!= 0, y != 0 , then D is divisible by