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If ax^2+2hxy+by^2+2gx+2fy+c=0 represents...

If `ax^2+2hxy+by^2+2gx+2fy+c=0` represents a pair of parallel lines then sqrt([q^2-ac/f^2-bc])=

A

`a/b`

B

`sqrt([a/b])`

C

`sqrt([b/a])`

D

`b/a`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-PAIR OF STRAIGHT LINES-LECTURE SHEET (EXERCISE-I Homogeneous pair of lines) (Straight Objective Type Questions)
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