give me 5 sums to solve to find determinants of a matrix

Sure, here are 5 problems for you to solve to find the determinants of a matrix:

1. Find the determinant of the following 2x2 matrix: A = [[4, 7], [2, 6]]

2. Find the determinant of the following 3x3 matrix: B = [[1, 3, 5], [2, 4, 6], [7, 8, 9]]

3. Find the determinant of the following 2x2 matrix: C = [[5, 8], [3, 4]]

4. Find the determinant of the following 3x3 matrix: D = [[2, 5, 7], [6, 3, 4], [5, 2, 1]]

5. Find the determinant of the following 2x2 matrix: E = [[9, 2], [3, 8]]