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The additive inverse of [(1,4,-7),(-3,2,...

The additive inverse of `[(1,4,-7),(-3,2,5),(2,3,-1)]` is

A

`[(1,-4,7),(3,-2,-5),(2,-3,1)]`

B

`[(-1,-4,7),(3,-2,-5),(-2,-3,1)]`

C

`[(-1,-4,7),(3,2,-5),(-2,-3,1)]`

D

`[(1,-4,7),(3,-2,5),(-2,-3,1)]`

Text Solution

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-MATRICES-EXERCISE 1A MCQ (ALGEBRA OF MATRICES)
  1. If A=[(2,3,1),(0,-1,5)],B=[(1,2,-1),(0,-1,3)] then 2A-3B=

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  2. If A=[(1,2,3),(2,0,-1),(0,2,-2)],B=[(1,0,0),(0,-1,0),(-1,0,2)] then 4A...

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  3. The additive inverse of [(1,4,-7),(-3,2,5),(2,3,-1)] is

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  4. If A=[(2,3,1),(0,1,5)],B=[(1,2,-1),(0,-1,3)] then [(1,0,5),(0,1,1)]=

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  5. If I=[(1,0),(0,1)]=J[(0,1),(-1,0)] and B=[(cos theta, sin theta),(-sin...

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  6. If A=[(2,1,3,-1),(1,-2,2,-3)],B=[(2,1,0,3),(1,-1,2,3)] and 2A+3B-5C=O ...

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  7. If A=[(3,2,-1),(1,5,4),(-2,3,7)], B=[(1,2,1),(2,1,2),(1,2,1)] and 3A+2...

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  8. If [(1,2,3),(3,2,1)]+X=[(4,4,4),(4,4,4)] then X=

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  9. If A+B=[(2,3,1),(6,-1,5)],A-B=[(2,1,-1),(0,-1,3)] then B=

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  10. If A-2B=[(1,2),(3,0)] and 2A-3B=[(-3,3),(1,-1)] then B=

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  11. If [(4,9),(3,0)]=[(x,y^(2)),(3,0)] then (x,y)=

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  12. If [[x-3,2y-8],[z+2,6]] = [(5,2),(-2,a-4)] then find x,y,z & a.

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  13. If A=[(0,2),(3,-4)],kA=[(0,3a),(2b,24)] then the values of k,a,b are r...

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  14. If [{:(x-1," "2,5-y),(" "0,z-1,7),(" "1," "0,a-5):}]=[{:(1,2,3),(0,4,7...

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  15. The order of the matrix A is 3xx5 and that of B is 2xx3. The order of ...

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  16. If [(1,2,3)]B=[(3,4)] then the order of the matrix B is

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  17. m[(-3,4)]+n[(4,-3)]=[(10,-11)]implies3m+7n=

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  18. If A=[(4,2),(-1,1)] then A^(2)=

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  19. If A=[(ab,b^(2)),(-a^(2),-ab)] then A^(2)=

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  20. If A=[(1,-3,-4),(-1,3,4),(1,-3,-4)] then A^(2)=

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