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If A is a square matrix then A-A\' is a...

If A is a square matrix then `A-A\'` is a

A

diagonal matrix

B

skew symmetric matrix

C

symmetric matrix

D

none of these

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A
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KC SINHA-MATRICES - FOR COMPETITION-Exercise
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  10. I A=[(0,5),(0,0)] and f(x)=1+x+x^2+…+^16, then f(A)= (A) 0 (B) [(1,5),...

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  11. If A is a non singular square matrix 3 then |adj(A^3)| equals (A) |A|^...

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  12. If A is a square matrix of order n xx n and k is a scalar, then adj (k...

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  14. If A=[(1,0,),(2,0)] and B=[(0,0),(1,12)] then= (A) AB=0, BA=0 (B) AB=0...

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  17. If the matrix AB=0 then (A) A=0 or B=0 (B) A=0 and B=0 (C) It is not n...

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  18. The matrix [0 5-7-5 0 11 7-11 0] is (a) a skew-symmetric matrix (b) a ...

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

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