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The four lines given by the equations 12...

The four lines given by the equations `12 x^(2)+7 x y-12 y^(2)=0` and `12 x^(2)+7 x y-12 y^(2)-x+7 y-1=0` lie along the sides of a

A

square

B

parallelogram

C

rectangle

D

rhombus

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The correct Answer is:
A
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HIMALAYA PUBLICATION-Pair Of Lines-QUESTION BANK
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  3. The four lines given by the equations 12 x^(2)+7 x y-12 y^(2)=0 and 12...

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  4. The point of intersection of perpendicular lines a x^(2)+3 x y-2 y^(2)...

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  5. The coordinates of the orthocentre of the triangle formed by the lines...

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  6. The area of the triangle formed by the lines x^(2 )+4 x y+y^(2)=0, x+y...

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  7. The condition that the slope of one the lines of a x^(2)+2 h x y+b y^...

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  8. The acute angle between the lines x^(2)-2 x y sec alpha+y^(2)=0 is

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  9. Condition that a pair of lines are at right angle is

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  10. If x^(2)-k x y-y^(2)+2 y+2=0 represents a pair of lines than the valu...

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  11. The angle between the lines x^(2)+4 x y-y^(2)=0 is

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  12. Acute angle between the lines y^(2)-2 sqrt(3) x y+3 x^(2)=0 is

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  13. If x^(2)+k y^(2)+x-y=0 represents a pair of lines then k=

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  14. Angle between the lines sqrt(3)(x^(2)+y^(2))-4 x y=0 is

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  15. Angle between the lines x^(2)+sqrt(17) x y+2 y^(2)=0 is

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  16. If k x^(2)-y^(2)+2 x-y=0 represents a pair of lines, then k=

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  17. The joint equation of the straight lines x + y = 1 and x - y = 4 is

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  18. The combined equation of y -axis and the line x-1=0 is

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  19. The sum of the slopes of the lines represented by 4x^(2)+2hxy-7y^(2)=0...

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  20. If the equation x^(2)+y^(2)+2gx+2fy+1=0 represents a pair of lines t...

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