Inverse of is.
AB does not exist
If f(x) = x2 - 5 x , A = , then f(A) is equal to
Where x, y, z are positive.
log y x
log z y
log x z
0
then B is
and A2 is the identity matrix, then x is equal to
-1
1
2
Let the determinant of a 3 × 3 matrix A be 6, then B is a matrix defined by B = 5 A2, then, determinant of B is
180
100
80
none of these
and I is the unit matrix of order 2, then A2 equals
4 A - 3 I
3 A - 4 I
A- I
A + I
Then sum of the products of the elements of any row of a determinant A with the co-factors of the corresponding elements is equal to
|A|
1/2 [A]
If a square matrix A is such that AAT = I = ATA, then |A| is equal to
± 2
3
± 1
