Class XII The number of all possible matrices of order 3×3 with each entry 0 or 1 is none of these 81 512 18 Let a, b, c, d, u, v be integers. If the system of equations, a x + b y = u, c x + dy = v, has a unique solution in integers, then ad - bc need not be equal to ±1 ad – bc = - 1 ad – bc = ±1 ad – bc = 1 From the matrix equation AB = AC we can conclude B = C, provided A is square matrix A is symmetric matrix A is non-singular matrix. A is singular matrix The system of equations,x + y = 2 and 2x + 2y = 3 has infinitely many solutions no solution a unique solution finitely many solutions A square matrix A = [aij]n×nis called a lower triangular matrix if aij = 0for none of these. i is less than j iis greater than j i = j Do you really want to submit this quiz? Cancel Submit Quiz