Friday

September 19, 2014

September 19, 2014

Posted by **Anonymous** on Monday, August 13, 2012 at 6:49am.

kx +y -z = 3

5x -ky +3z =7

For what values of k does the system have a unique solution

- math -
**drwls**, Monday, August 13, 2012 at 8:59amThe determinant

|1 5 -6|

|k 1 -1|

|5 -k 3|

must be non-zero.

Turn that into an inequality for k.

(3 -k) +(-25 -15k)+(-6k^2 +30) NOT = 0

**Answer this Question**

**Related Questions**

algebra - Consider the following system of inequalities: {(c-1)x^2+2cx+c+4<0...

Linear Algebra - Consider the system x-2y=k-1 4x+(1-k^2)y=8 For what values of k...

maths - Consider the following system of inequalities: {(c−1)x^2+2cx+c+4&#...

algebra - Consider the following system of inequalities: {(c−1)x^2+2cx+c+4...

MAths - Consider the following system of inequalities: (c−1)x^2+2cx+c+4&#...

math - two systems of equations are giving below for each system choosethe best ...

math - two systems of equations are given below for each system, choose the best...

math - A linear system may have a unique solution, no solution, or infinitely ...

Linear algebra - Consider for every real number a the linear system of equations...

math - A linear system may have a unique solution, no solution, or infinitely ...