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Q.The pair of lines ax2+2hxy+by2+2gx+2fy+c=0ax^2 + 2hxy + by^2 + 2gx + 2fy + c = 0 represents two parallel lines if

a
h2=abh^2 = ab, af2=bg2af^2 = bg^2, cg=bfcg = bf
b
h2=abh^2 = ab, bg2=af2bg^2 = af^2, cg=bfcg = bf
c
h2>abh^2 > ab
d
Δ=0\Delta = 0

Correct Answer: Option B

The correct solution involves applying the fundamental concept to derive the final value step by step...

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The pair of lines ax^2 + 2hxy + by^2 + 2gx + 2fy + c = 0 r... | ParikshaNiti