Better Students Ask More Questions.
If A and B are 4x4 matrices, det(A) = -4, det(B) = 3, then (e) det(B^2) = ???,
2 Answers | add yours
High School Teacher
(Level 1) Associate Educator, Expert
Note the solving for determinants is distributive:
I'm sorry. We are solving for `det(B^2)`
Using the same technique, `det(B^2) = det(BB)=det(B)det(B)=[det(B)]^2 = 3^2 = 9`
Sorry, got confused with the numbers.
Posted by mvcdc on April 28, 2013 at 11:14 AM (Answer #3)
Join to answer this question
Join a community of thousands of dedicated teachers and students.