A) \[k=-4\]
B) \[k=0\]only
C) \[k\ne -1\]
D) \[k\ne -4\]
Correct Answer: D
Solution :
[d] The given pair of linear equation is |
\[x-2y-3=0\] and \[2x+ky-5=0\] |
For unique solution: \[\frac{{{a}_{1}}}{{{a}_{2}}}\ne \frac{{{b}_{1}}}{{{b}_{2}}}\] |
\[\Rightarrow \,\,\,\,\,\,\,\,\,\frac{1}{2}\ne \frac{-2}{k}\] |
\[\Rightarrow \,\,\,\,\,\,\,\,\,k\ne -4\] |
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