If R =,then top row of R-1 is

1.  [5 6 4]

2.  [5 -3 1]

3.  [2 0 -1]

4.  [2 -1 ]

View Answer  
4
Correct Answer :

[5 -3 1]


Explanation :
No Explanation available for this question

Rank of a 3x3 matrix C (=AB), found by multiplying a non-zero column matrix A of size 3x1 and a non-zero row matrix B of size 1x3, is

1.  0

2.  1

3.  2

4.  3

View Answer  
4
Correct Answer :

1


Explanation :
No Explanation available for this question

The system of simultaneous equations X+2y+z = 6 2x+y+2z = 6 X+y+z = 5 has

1.  Unique solution

2.  Infinite number of solutions

3.  No solution

4.  Exactly two solutions

View Answer  
4
Correct Answer :

No solution


Explanation :
No Explanation available for this question

Sum of Eigen values of the matrixis

1.  5

2.  7

3.  9

4.  18

View Answer  
4
Correct Answer :

7


Explanation :
No Explanation available for this question

For which value of x, will the matrixbecome singular

1.  4

2.  6

3.  8

4.  12

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

Rank of the matrix, A =is

1.  1

2.  2

3.  3

4.  None of these

View Answer  
4
Correct Answer :

2


Explanation :
No Explanation available for this question

Eigen vectors of the matrixis (are)

1.  (1,0)

2.  (0,1)

3.  (1,1)

4.  (1,-1)

View Answer  
4
Correct Answer :

(1,-1)


Explanation :
No Explanation available for this question

Inverse of the matrixis

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

If A and B are square matrices of size n x n,then which of the following statement is not true

1.  det(AB)=det (A) det (B)

2.  det(k A)=kn det(A)

3.  det(A+B)=det(A)+det(B)

4.  det(AT)=1/det(A-1)

View Answer  
4
Correct Answer :

det(A+B)=det(A)+det(B)


Explanation :
No Explanation available for this question

if matrices A is mxn and B is nxp,the number of multiplication operations and addition operations needed to calculate the matrix AB,respectively are

1.  Mn2p,mpn

2.  Mpn,(n-1)

3.  Mpn,mpn

4.  Mn2p,(m+p)n

View Answer  
4
Correct Answer :

Mpn,(n-1)


Explanation :
No Explanation available for this question
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