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The combined equation of the lines l(1),...

The combined equation of the lines `l_(1), l_(2)` is `2x^(2)+6xy+y^(2)=0` and that of the lines `m_(1),m_(2) is 4x^(2)+18xy+y^(2)=0`. If the angle between `l_(1) and m_(2)` be `alpha` then angle between `l_(2) and m_(2)` is

A

`(pi)/(2)-alpha`

B

`2alpha`

C

`(pi)/(2)+alpha`

D

`alpha`

Text Solution

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The correct Answer is:
D
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