1. (a) The matrix M is defined as M-[(3) Determine the value of p for which the matrix M does NOT have an inverse. (2 marks) (b) Determine the value of x for which the matrix is singular. (2 marks) (c) N and P are 2 × 2 matrices such that N = 43 4 2 }) 15 and P= (i) Determine NP. (ii) Given that PN = commutative. 4). (iii) Determine N, the inverse of N. (1 mark) determine whether matrix multiplication is (1 mark) (iv) Hence, calculate the values of x and y for which (2 marks) $40-9​