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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//4+alpha`

D

`alpha`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-PAIR OF STRAIGHT LINES-PRACTICE SHEET (EXERCISE-1 Homogeneous pair of line) (LEVEL-I Straight Objective Type Questions)
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  8. The lines represented by the equation x^(2)-y^(2)-x+3y-2=0 are

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  13. The distance from a point (alpha,beta) to a pair of lines passing thro...

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  14. If x^(2)+4xy+4y^(2)+4x+cy+3 can be written as the product of two linea...

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  17. The condition that one of the pair of lines ax^2+2hxy+by^2=0 be conici...

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  19. Area of the triangle formed by the lines 3x^(2)-4xy+y^(2)=0, 2x-y=6 is

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