Find the equation of the line joining A(1,3)and B(0,0)using determinants and find k
if D(k,o)is a point such that area of triangle ABD is 3sq units.
None of these
Find value of x,if .
If elements of a row (or column)are multiplied with cofactors of any other row (or column),then their sum is ________ .
Positive
Negative
Zero
A square matrix A is said to be singular if |A|= _____ .
0
1
2
3
(AB)-1 = __________
A-1B-1
B-1A-1
B-1/A-1
(AB)T
A is orthogonal if AAT = ________
A
I
A-1
|A|I
If |A| ≠ 0, then that square matrix is called _________
Singular matrix
Identity matrix
Zero matrix
Non singular matrix
a
a11
a12
Find the minor of element 6 in the determinant Δ=.
-2
-3
-6
-7
|AB| = ________
|B||A|
|A||B|
[AB]T
