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Which one of the following is not true?...

Which one of the following is not true?

A

Matrix addition is associative

B

Matrix addition is commutative

C

Matrix multiplication is associative

D

Matrix multiplication is commutative

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

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  3. Which one of the following is not true?

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  4. Which is true about matrix multiplication?

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  5. The matrix product AB=0, then

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

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

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

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

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

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  11. Which of the following is incorrect?

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

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  13. Which of the following relations is incorrect?

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  14. Which one of the following statements is true?

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

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

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

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

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

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

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