Question

For which value of k does the pair of equation given below has unique solution ?
2kx + 3y + 3 = 0
4x + y + 4 = 0​

Answer 1

Answer:

If the equation has unique solution then,

a1/a2 is not = b1/b2

Here, a1=2k b1=3

a2=4 b2=1

So, 2k/4 is not = 3/1

2k is not equal to 12

k not equal to 6.

k can be any integer except 6.

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