using user dedine MATLAB. How to solve this question

Write a user-defined MATLAB function that calculates the determinant of a 3x3 matrix by using the formula: 5411 412 413 A = |A21 A22 A23 A31 A32 A33 det = 1 2 3 4 A 22 A 23 A32 A33 A 12 A21 A 23 A3 A33 + A13 A21 A22 A31 A32 | 422 423 |A32 A33 = A22 * A33 - A32 * A23 For the function name and arguments use d3 = det3by3(A), where the input argument A is the matrix and the output argument d3 is the value of the determinant. Write the code of det3by3 such that it has a subfunction that calculates the 2x2 determinant. Use det3by3 for calculating the determinants of: 132 [-2.5 7 1 a) 6 5 4 b) 5 -3 -2.6 789 4 2 -1