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

Which one of the following is not true about the matrix `[(2,0,0),(0,-2,0),(0,0,1)]`

A

diagonal matrix

B

scalar matrix

C

upper triangular matrix

D

lower triangular matrix

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The correct Answer is:
B
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PREMIERS PUBLISHERS-MATRICES AND DETERMINANTS-PROBLEMS FOR PRACTICE .(II CHOOSE THE CORRECT OPTION FROM THE FOLLOWING)
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  3. Let A=|(a(1),b(1),c(1)),(a(2),b(2),c(2)),(a(3),b(3)c(3))|then the cofa...

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  4. The area of traingle whose vertices are (0,0),(3,4),and(2,5) is :

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  6. Find the odd man out:

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  7. Find the correct statement:

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  9. Find the incorrect statement:

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  12. The minor of 7 in [(3,1,4),(-1,0,3),(6,7,5)]is

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  13. If A=|(2,1),(1,2)|,B=|(2,4),(1,2)|then |AB| is

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  14. If |(a(1),b(1),c(1)),(a(2),b(2),c(2)),(a(3),b(3),c(3))|is 8 the value ...

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  15. Which one of the following is not true about the matrix [(2,0,0),(0,-2...

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  16. Find which one is true. If A and B are two matrices such that A+B and ...

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  17. If A is a square matrix then find the odd man out:

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  18. If x(1), x(2), x(3) and y(1),y(2), y(3) are in arithmetic progression ...

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  19. Let A andB be two skew symmetric matrices of the same order find the i...

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  20. (i) If A and B are symmetric matrices of same order AB-BA is a skew sy...

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