• Support PF! Buy your school textbooks, materials and every day products via PF Here!

I need to know

This one, prove it please, I have 5 problems in linear algebra class as an assignment which I have to hand in next week's Monday and I don't know how to solve this problem, the last one;
[tex]A^-=\frac{(A_j_k)^T}{det(A)}=\frac{(A_j_k)}{det(A)}[/tex]

Thank you
 

OlderDan

Science Advisor
Homework Helper
3,021
1
James Cutler said:
This one, prove it please, I have 5 problems in linear algebra class as an assignment which I have to hand in next week's Monday and I don't know how to solve this problem, the last one;
[tex]A^-=\frac{(A_j_k)^T}{det(A)}=\frac{(A_j_k)}{det(A)}[/tex]

Thank you
I don't know about everyone else, but your notation is not clear to me. Is this a matrix equation? Are you talking about an element of a matrix? Did you lose a 1 on the left hand side? Did you mix up the indices somewhere?
 

Related Threads for: I need to know

Replies
3
Views
307
Replies
35
Views
3K
Replies
1
Views
2K
  • Posted
Replies
1
Views
915
Replies
10
Views
7K
Replies
1
Views
814
Replies
1
Views
9K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top