Find the area of the triangle whose vertices are (3,8),(-4,2)and (5,1).
61
64/2
54/2
61/2
Determinant of a matrix A -[a11]1x1 is given by _______
a
a11
a12
None of these
(AB)-1 = __________
A-1B-1
B-1A-1
B-1/A-1
(AB)T
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
If ,find |A|.
A is orthogonal if AAT = ________
A
I
A-1
|A|I
For any ________ matrix A, |A'| = |A|,where A'=transpose of A .
Square
Column
Row
Find the minor of element 6 in the determinant Δ=.
-2
-3
-6
-7
