SOLUTION: by the examining the determinant of the coefizient matriks, show that the following system has a nontrivial solition if and only if α.β x+y+αz=0 x+y+βz=0 &#9

Algebra.Com
Question 1055240: by the examining the determinant of the coefizient matriks, show that the following system has a nontrivial solition if and only if α.β
x+y+αz=0
x+y+βz=0
αx+βy+z=0

Answer by ikleyn(52852)   (Show Source): You can put this solution on YOUR website!
.
The determinant of the matrix is 

 = .


Therefore, the given system has a non-trivial solution if and only if 

 = 0,  or,  equivalently,   = .

Honestly, I don't know what condition on and is written in your post (or what you were going to write there).

Unfortunately.


RELATED QUESTIONS

Entries of a 2*2 determinant are chosen from the set (-1,1).The probability that... (answered by ikleyn)
Show that in 3 x 3 determinant if one row is 0, the value of the determinant is... (answered by Jk22)
For each of the following choices of A and b, determine whether the system Ax = b is... (answered by Fombitz)
if two rows of a determinant are interchanged, what is the true of the resulting... (answered by Alan3354)
if two rows of a determinant are interchanged, what is true of the resulting... (answered by Edwin McCravy)
Prove that if the determinant of a set of vectors is zero these are linearly... (answered by ikleyn)
a chemist needs 9 liters of a 10% alcohol solution but has only a 15% alcohol sulotion.... (answered by lwsshak3)
Consider the following system of linear equations. 3x − 2y + z = 4 x + y − z = 2 x (answered by Edwin McCravy)
Without expanding the determinant show that it is equal to 0. The elements in... (answered by ikleyn)