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If [[x,1],[-1,-y]]+[[y,1],[3,x]]=[[1,2],...

If `[[x,1],[-1,-y]]+[[y,1],[3,x]]=[[1,2],[2,1]]` , then (x,y) =

A

(1,0)

B

(1,1)

C

(0,1)

D

(2,1)

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • If [[x+y] , [x-y]]=[[2,1] , [4,3]] [[1],[-2]] then (x,y)

    A
    1)(-1,1)
    B
    2)(1,-1)
    C
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    D
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  • If 2[[1,3],[0,x]]+ [[y,0],[1,2]]= [[5,6],[1,8]] , then the value of x and y are

    A
    x = 3, y = 3
    B
    x = -3, y = 3
    C
    x = 3, y = -3
    D
    x = -3, y = -3

  • If [[x, y^3],[2,0]]=[[1,8],[2,0]] then [[x,y],[2,0]]^-1=

    A
    `[[0,-2],[-2,1]]`
    B
    `[[1,0],[0,1]]`
    C
    `[[0,-8],[-2,1]]`
    D
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