A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Applied Linear Algebra Question, I'm posting question give me one second
anonymous
 one year ago
Applied Linear Algebra Question, I'm posting question give me one second

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay so I got to the point where I dont know what to do next

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I have to find values of "a" where the system has no solution, Unique Solution, and infinte solutions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got the system to row echelon form

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lt me draw what i got out

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442684208867:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do I need to put this into reduce echelon form?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Actually yea I think that would help

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0let me do that on paper, first brb

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh wait made a mistake in the drawing, the "3a+10" has a denominator of "2a4"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442685001288:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If a is not equal to 2, then we have a unique solution Plugging in a = 2 in the second we get 1 2 3 3 0 4+2a 33a 103a 0 0 1 1 the middle row second term is non zero, so you can solve for it, and that produces a triangular system with a unique solution. Try a number.

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1find the determinant and set it to zero and that might save a lot of typing

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1ie set to zero and solve for a

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I assume you mean the determinant of the coefficient matrix.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the determinant of the coefficient matrix is 12  6a the matrix has a unique solution as long as the determinant is non zero. 12  6a = 0 12 = 6a 12/6 = a if a ≠ 2 then the system has a unique solution (because the determinant is nonzero)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if a = 2 you have a contradiction, can you see why?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Case 1: "a" does not equal to 2, give a uniqure solution case 2: "a" equals 2, gives no Solution Case 3: there is never a infinite solution is that correct?

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1yeah, work that way :p if \(a \ne 2\) you have a solution so set a to 2 and do your reduction, see where you go

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It will be no solution if u get set a = 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So would it be right to say that this system does not have infinite solutions?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So it has no solution when a=2, a unique solution a does not =2, but not infinite solutions right? or when a does not equal to 2 it will have infinite solution as well?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it will never have infinite solutions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what I'm confused about is that if a does not equal to 2, will it have infinite solutions

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh ok, can you tell me why though?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if a does not equal to 2 it will have a unique solution if a is equal to 2 it will have no solution (because of contradiction) there is no case of 'infinite solutions'

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oooh I see, lol thanks, I blanked out for a second there. Thank you so much!

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442690538127:dw

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442690850922:dw
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.