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The matrix A = [(0,-1),(1,0)] is a (a) ...

The matrix ` A = [(0,-1),(1,0)]` is a (a) identity matrix (b) Diagonal matrix (c) symmetric matrix (d) skew symmetric matrix

A

a unit matrix

B

a diagonal matrix

C

a symmetric matrix

D

a skew-symmetric matrix

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The correct Answer is:
D
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ACCURATE PUBLICATION-MATRICES-QUESTIONS CARRYING 1 MARK (Type-I : (Multiple choice questions))
  1. Assume X, Y, Z, W and P are matrices of order 2xxn, 3xxk, 2xxp, nxx3 ...

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  2. The matrix A = [(0,-1),(1,0)] is a (a) identity matrix (b) Diagonal m...

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  3. The matrix A = [(0,-1),(1,0)] is a (a) identity matrix (b) Diagonal m...

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  4. If A is any square matrix then A + A' is a :

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  5. If A, B are symmetric matrices of same order, then AB - BA is a :

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  6. If A is a matrix of order 5xx2 and B is a matrix of order 2xx5, then t...

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  7. If A is a matrix of order 3xx2 and B is a matrix of order 2xx3, then t...

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  8. If order of matrix A is 2 xx 3 and order of matrix B is 3 xx 5, then o...

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  9. If order of matrix A is 4 xx 3 and order of matrix B is 3 xx 5, then o...

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  10. If the matrix A is both symmetric and skew symmetric, then :

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  11. If A = [[1 2 3 ]], then AA' is equal to :

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  12. Choose the correct option in the question : If A = {:((3,2,1)):} the...

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  13. If A and B are two invertible matrices, then the inverse of AB is equa...

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  14. If A and B are square matrices of the same order, then (A+B) (A-B) is ...

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  15. If A=[{:(2,-1,3),(-4,5,1):}] and B=[{:(2,3),(4,-2),(1,5):}] , then

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  16. The matrix {:[(0,0,5),(0,5,0),(5,0,0)] is a scalar matrix. State true ...

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  17. If A and B are symmetric matrices of same order then AB - BA is a :

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  18. The matrix P=[{:(0,0,4),(0,4,0),(4,0,0):}] is a

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  19. The number of all possible matrices of order 3xx3 with each element 0 ...

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  20. If [{:(2x+y,4x),(5x-7,4x):}]=[{:(7,7y-13),(y,x+6):}] then the value of...

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