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If 3A-B=[{:(5,0),(1,1):}] and B=[{:(4,3)...

If `3A-B=[{:(5,0),(1,1):}]` and `B=[{:(4,3),(2,5):}]` then find the matrix A.

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SHARAM PUBLICATION-MATRICES-EXAMPLE
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  3. If 3A-B=[{:(5,0),(1,1):}] and B=[{:(4,3),(2,5):}] then find the matrix...

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  9. If [[9,-1,4],[-2,1,3]]=A+[[1,2,-1],[0,4,9]]then find the matrix A.

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  10. If [[x,x-y],[2x+y,7]]=[[3,1],[8,7]] then find the value of y.

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  11. If [[y+2x,5],[-x,3]]=[[4,5],[-2,3]]then find the value of y.

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  12. If [[2x,1],[5,x+2y]]=[[4,1],[5,0]]then find the value of x+y.

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  13. If [[2x+y,3y],[0,4]]=[[6,0],[0,4]]then find the value of x.

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  14. If [[1,3],[4,5]]=[[7,11],[k,23]]then write the value of k.

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  18. If A=[{:(2,0,1),(2,1,3),(1,-1,0):}] then find the value of A^(2)-3A+2I

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  19. If A =[[1,2,2],[2,1,2],[2,2,1]] then prove that A^2-4A-5I=0.

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