# Matrices - problems

Matrices are multidimensional arrays which can be added, subtracted, multiplied and divided between themselves. Matrices can also be used in order to solve mathematical equations.

 1.  Find the cofactor of a 3×3 matrix level 46 log in 2.  Find the transpose of a 3×3 matrix level 10 log in 3.  Find the transpose of a 2×3 matrix level 7 log in 4.  Find the transpose of a 2×2 matrix level 5 log in 5.  Find the determinant of a 3×3 matrix level 16 log in 6.  Find the adjoint of a 3×3 matrix level 64 log in 7.  Find the determinant of a 2×2 matrix level 4 log in 8.  Find the inverse of a 3×3 matrix level 88 log in 9.  The product of 2 matrices (3×3 and 3×2) level 36 log in 10.  Product of two matrices (1×3 and 3×1) level 6 log in 11.  Find the product of two 3×3/3×1 matrices level 18 log in 12.  Find the product of two matrices of 2×2 level 16 log in 13.  Calculate the sum of two 3×3 matrices level 18 log in 14.  Find the product of two 3×3 matrices level 54 log in 15.  Subtract 2 matrices (second from the first one) level 8 log in 16.  Calculate the sum of two matrices (2×2) level 8 log in 17.  Product of matrices A (3×1) and B (1×3) level 18 log in 