Evaluate .
16
18
20
22
If elements of a row (or column)are multiplied with cofactors of any other row (or column),then their sum is ________ .
Positive
Negative
Zero
None of these
Find the area of the triangle whose vertices are (3,8),(-4,2)and (5,1).
61
64/2
54/2
61/2
42
44
46
48
Evaluate the determinants
5
10
12
If a square matrix A is said to be singular if |A| _____________
= 1
= 0
≠ 0
= [A]
Evaluate :
2
4
6
8
___________ of an element aij of a determinant is the determinant obtained by deleting its ith row and jth column in which element aij lies.
Cofactor
Minor
Adjoint
By using properties of determinants,evaluate :
.
4abc
2abc
4a2b2c2
Find the minor of element 6 in the determinant Δ=.
-2
-3
-6
-7
