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

Matrices help

  • Thread starter ts21121
  • Start date
  • #1
3
0

Homework Statement



for the system of linear questions given as
l 2 1 -5 l l x l= l 1 l
l -1 -3 h l l y l= l 2 l Find all values for h for which the system will have no solution
l -3 2 6 l l z l= l 3 l

Homework Equations





The Attempt at a Solution


Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
Char. Limit
Gold Member
1,204
14
Try making that into an augmented matrix, then finding what values of h will make the system inconsistent. A hint: What makes an augmented matrix inconsistent?
 
  • #3
3
0
okay i have gotten it down to

2 1 -3 1
0 7 -3 9
0 0 (-50+14h) 80

where do i go from here?

thanks
 
  • #4
Char. Limit
Gold Member
1,204
14
Well, you know from there that 14h-50 = 80. So solve that for h and you'll have the solutions such that it's consistent, at least I think so.
 

Related Threads on Matrices help

  • Last Post
Replies
4
Views
3K
  • Last Post
Replies
1
Views
752
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
1
Views
829
  • Last Post
Replies
12
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
2
Views
782
  • Last Post
Replies
4
Views
1K
Replies
5
Views
6K
  • Last Post
Replies
3
Views
1K
Top