17. Determine whether the matrix is invertible. 55-5 62-6 0 2 18. Find a, b, c,...

  

Transcribed Image Text:

17. Determine whether the matrix is invertible. 55-5 62-6 0 2 18. Find a, b, c, d so that 19. Solve the system by using the inverse of the coefficient matrix. 10x1-4x2=-6 6x1-x2-2 20. Consider the matrix product AB, where -2 0-3 0 0 0-27 -3-1-3-3 73 3 77 3-1-2 2-2-3 1-2-2-2 3-3 -1 A = B= 2 2 1 0-3 1 1 2-2 3 3-1 2 1 2 -3-2-3 0 The value of entry (2,4) in AB, i.e. (AB)24, is: -2-2-2-3 17. Determine whether the matrix is invertible. 55-5 62-6 0 2 18. Find a, b, c, d so that 19. Solve the system by using the inverse of the coefficient matrix. 10x1-4x2=-6 6x1-x2-2 20. Consider the matrix product AB, where -2 0-3 0 0 0-27 -3-1-3-3 73 3 77 3-1-2 2-2-3 1-2-2-2 3-3 -1 A = B= 2 2 1 0-3 1 1 2-2 3 3-1 2 1 2 -3-2-3 0 The value of entry (2,4) in AB, i.e. (AB)24, is: -2-2-2-3