1.
Matrix A is such that where is the indentity matrix, then for
2.
Matrix is defined as value of is
3.
The number of solutions of the system of equations is
4.
If is a scalar matrix of order such that for all then trace of is equal to
5.
If , where then is equal to
6.
If then is
7.
The system of equations Then, is equal to
8.
The system of equation
ax+y+z=a-1
x+ay+z=a-1
x+y+az=a-1
Has no solution, if a is
9.
A matrix is an upper triangular matrix, if
10.
If A=and is the identity matrix, then is equal to