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If the pair of lines ax^(2)+2hxy+by^(2)=...

If the pair of lines `ax^(2)+2hxy+by^(2)=0 (h^(2) gt ab)` orms an equilateral triangle with the line lr + my + n = 0 then (a+3b)(3a+b)=

A

`h^2`

B

`2h^2`

C

`3h^2`

D

`4h^2`

Text Solution

Verified by Experts

The correct Answer is:
D
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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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