If \[a{{x}^{2}}-{{y}^{2}}+4x-y=0\]represents a pair of lines then \[a= – McqOptions

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1.	If \[a{{x}^{2}}-{{y}^{2}}+4x-y=0\]represents a pair of lines then \[a=\] [Karnataka CET2004]
A.	-16
B.	16
C.	4
D.	-4
Answer» C. 4

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