Find k so that equation has unique solution x-2y=2,3x+ky=(-5) – InterviewSolution

1.

Find k so that equation has unique solution x-2y=2,3x+ky=(-5)

Answer»

x-2y=2,3x+ky=(-5) to have a unique solution, they should meet at a single point

a1/a2 should not be equal to b1/b2

==> 1/3 =/ -2/k ==> k should not be equal to -6

how k is not equal to the -6

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