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The equation of the pair of lines throug...

The equation of the pair of lines through (1,-1) and perpendicular to the pair of lines `x^2-xy-2y^2=0` is

A

`2x^2-xy+y^2+5x+y+2=0`

B

`2x^2-xy-y^2-5x+y-2=0`

C

`2x^2-xy+2y^2-5x-y+2=0`

D

`2x^2-xy-y^2+5x+y-2=0`

Text Solution

Verified by Experts

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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  4. The condition that one of the straight lines given by the equation ax^...

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  6. The equations x-y=4 and x^2+4xy+y^2=0 represent the sides of

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  7. The triangle formed by the pair of line 3x^2+48xy+23y^2=0 and the line...

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  9. If 2x^(2)-3xy+y^(2)=0 represents two sides of a triangle and lx + my ...

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  10. If one angular bisector of a(x+1)^(2)+2h(x+1)(y-3)+b(y-3)^(2)=0 is 2x-...

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  11. If the pairs of lines 3x^2-2pxy-3y^2=0 and 5x^2-2qxy-5y^2=0 are such t...

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  12. The lines 36x^(2)-33xy-20y^(2)=0 are equally inclined to the line

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  13. The slope of angular bisector of line (ax+by)^2=c(bx-ay)^2,(cgto) are

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  14. If two lines represented by x^4+x^3y+cx^2y^2-xy^3+y^4=0 bisect the ang...

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  15. If the pair of lines ax^(2)+2hxy+by^(2)=0 (h^(2) gt ab) orms an equila...

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  16. The area of the triangle formed by the straight line x + y = 3 and the...

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  17. Area of triangle formed by pair of lines (x+2a)^2-3y^2=0 and x=a is

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  19. If the sides of a triangle are ax^2+2hxy+by^2=0 and y=x+c, then its ar...

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  20. If 2x^2-5xy+2y^2=0 represents two equal sides of an isosceless triangl...

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