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UP TGT Mathematics Co-ordinate Geometry Test Series - Part 2

For general second degree equation ax²+2hxy+by²+...=0, condition for pair of straight lines is?

Type: MCQ • Marks: 1
For general second degree equation ax²+2hxy+by²+...=0, condition for pair of straight lines is?
Options
A. Δ=0
B. a+b=0
C. h=0
D. a=b
Explanation
Determinant Δ=0 is the condition for a degenerate second degree equation representing pair of lines.
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