# 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 |