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Which is true about matrix multiplicatio...

Which is true about matrix multiplication?

A

It is associative

B

It is commutative

C

It is not associative

D

It have inverse

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The correct Answer is:
A
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NIKITA PUBLICATION-MATRICES-MULTIPLE CHOICE QUESTIONS
  1. If A is a mtimesn matrix and B is a matrix such that both AB and BA ar...

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  2. Which one of the following is not true?

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  3. Which is true about matrix multiplication?

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  4. The matrix product AB=0, then

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  5. Assuming that the sums and products given below are defined, which of ...

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  6. If A, B are square matrices of order 3, A is non-singular and AB=0, th...

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  7. If A andB are square matrices of order 2, then (A+B)^(2)=

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  8. If A and B are square matrices of order ntimesn, then (A-B)^(2)=

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  9. If A, B are two matrices and (A+B)(A-B)=A^(2)-B^(2), then

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  10. Which of the following is incorrect?

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  11. If A^(T), B^(T) are transpose of the square matrices A, B respectively...

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  12. Which of the following relations is incorrect?

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  13. Which one of the following statements is true?

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  14. If A=[[a(11), a(12), a(13)], [a(21), a(22), a(23)], [a(31), a(32), a(3...

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  15. If A=[[1, 1, 0], [2, 1, 5],[1, 2, 1]] and a(ij) denote the cofactor ...

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  16. If A=[[a(11), a(12), a(13)], [a(21), a(22), a(23)], [a(31), a(32), a(3...

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  17. If A and B are non-singular square matrices of same order then adj(AB)...

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  18. If A is a non-singular matrix of order n, then A(adj A)=

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  19. If A is a singular matrix of order n, then A(adjA)=

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  20. If A is a ntimesn matrix and |A|ne0, then adj(adjA)=

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