## Discussion Forum

Que. | Consider the following 2 × 2 matrix A where two elements are unknown and are marked by a and b. The eigenvalues of this matrix are –1 and 7. What are the values of a and b?
A = | 1 4 | | b a | |

a. | a = 6, b = 4 |

b. | a = 4, b = 6 |

c. | a = 3, b = 5 |

d. | a = 5, b = 3 |

Answer:a = 5, b = 3 |