Question

For what value of k,does the pair of equations given below has a unique solution ?

2x+ky=6
4x+6y=0​

Answer 1

k is not equal to 3.

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-@PinkiMeena...❤~

Answer 2

Answer

$2x + ky = 6 ⇒2x + ky - 6 = 0$

$4x + 6y = 0 ⇒4x + 6y + 0 = 0$

$⇒ \frac{a_{1}}{a_{2}} ≠ \frac{b_{1}}{b_{2}}$

$⇒ \frac{2}{4} ≠ \frac{k}{6}$

$⇒k≠ \frac{2 \times 6}{4} = k≠3$

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