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Let A be the set of all 3 xx 3 symmetri...

Let A be the set of all `3 xx 3` symmetric matrices all of whose entries are either 0 or 1. Five of these entries are 1 and four of them are 0. The number of matrices in A is

A

12

B

6

C

9

D

3

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A
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MOTION-MATRICES -Exercise - 4 (Level-II)
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  4. Let A be the set of all 3xx3 symmetric matrices all of whose either 0 ...

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  5. Let A be the set of all 3xx3 symmetric matrices all of whose either 0 ...

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  6. The number of 3xx3 matrices A whose entries are either 0or1 and for wh...

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  7. Let p be an odd prime number and Tp be the following set of 2 x 2 ma...

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  8. Let p be an odd prime number and Tp be the following set of 2 x 2 ma...

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  9. Let p be an odd prime number and Tp be the following set of 2 x 2 ma...

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  10. Let K be a positive real number and A=[2k-1 2sqrt(k)2sqrt(k)2sqrt(k)1-...

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  11. Let M be a 3xx3 matrix satisfying M[{:(0),(1),(0):}]=[{:(-1),(2),(3):}...

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  12. Let P = [a(ij)] " be a " 3 xx 3 matrix and let Q = [b(ij)], " where " ...

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  13. If P is a 3xx3 matrix such that P^T = 2P+I, where P^T is the transpose...

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  14. If the adjoint of a 3 3 matrix P is 1 4 4 2 1 7 1 1 3 , then the po...

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  15. For 3xx3 matrices Ma n dN , which of the following statement (s) is (a...

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  16. Let Ma n dN be two 3xx3 matrices such that M N=N Mdot Further, if M!=N...

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  17. Let M be a 2 × 2 symmetric matrix with integer entries. Them M is inve...

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  18. Let Xa n dY be two arbitrary, 3xx3 , non-zero, skew-symmetric matrices...

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  19. Let p=[(3,-1,-2),(2,0,alpha),(3,-5,0)], where alpha in RR. Suppose Q=[...

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  20. Let P=[[1,0,0],[4,1,0],[16,4,1]]and I be the identity matrix of order ...

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