The condition that one of the straight lines given by the equation \( a x^{2}+2 h x y+b y^{2}=0 ... VIDEO
The condition that one of the straight lines given by the equation \( a x^{2}+2 h x y+b y^{2}=0 \) may coincide with one of those given by the equation \( a^{\prime} x^{2}+2 h^{\prime} x y+b^{\prime} y^{2}=0 \) ishttps://bit.ly/YTAI_PWAP https://www.pw.live
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\[
\begin{array}{l}
L_{1}=x+3 y-5=0 \\
L_{2}=3 x-k y-1=0 \\
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