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Q.The condition that the equation ax2+2hxy+by2+2gx+2fy+c=0ax^2 + 2hxy + by^2 + 2gx + 2fy + c = 0 represents a pair of straight lines is

a
Δ=0\Delta = 0 where Δ\Delta is determinant of coefficients
b
h2=abh^2 = ab
c
af2=bg2af^2 = bg^2
d
Δ=abc+2fgh−af2−bg2−ch2=0\Delta = abc + 2fgh - af^2 - bg^2 - ch^2 = 0

Correct Answer: Option D

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

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