Number of elements in a matrix of order 2 × 3 is
5
2
3
6
a b c
4abc
4a2b2c2
a2b2c2
If -9 is the root of the equation then other two roots are
2, 7
-2,7
-2, -7
2, -7
Matrix A is of order 2 × 3 and B is of order 3 × 2 then order of matrix BA is
3 × 3
2 × 3
2 × 2
3 × 2
-3,1
3,1
3,-1
0,3
, then A2 =
null matrix
unit matrix
A
2A
If AB = C then matrix A,B,C are
A2×3, B3×2, C2×3
A3×2, B2×3, C3×2
A3×3, B2×3, C3×3
A3×2, B2×3, C3×3
