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The distance between the parallel lines...

The distance between the parallel lines given by
`(x+7y)^(2)+4sqrt(2)(x+7y)-42=0` is

A

2

B

`4/7`

C

`4sqrt(2)`

D

`8sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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MODERN PUBLICATION-FAMILY OF LINES -MULTIPLE CHOICE QUESTION (LEVEL II)
  1. If 4a^2 + 9b^2 - c^2 + 12ab=0 , then the family of straight lines ax +...

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  2. The distance between the parallel lines given by (x+7y)^(2)+4sqrt(2...

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  3. The pair of st lines perpendicular to the pari ax^(2)+2hxy+by^(2)=0 ...

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  4. The equation 3x^(2)+2hxy+y^(2)=0 represent a pair of st lines passin...

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

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  6. If one of the lines of the pair ax^(2)+2hxy+by^(2)=0 bisects the angl...

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  7. If the pairs of lines 3x^(2)-2pxy-3y^(2)=0 and 5x^(2)-2qxy-5y^(2)=0...

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  8. If pair of st lines ax^(2)+2hxy-ay^(2)-ay^(2)=0 and bx^(2)+2gxy-by^(2)...

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  9. Let PQR be a right angled isosceles triangle right angled at P(2,1) ...

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  10. If the pair of lines a x^(2)+2 h x y+b y^(2)=0 is rotated about the or...

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  11. The equation of the image of the pair of lines y =|x| by the line x ...

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  12. If x^(2)-kxy+y^(2)+2y+2=0 represent a pair of st lines then k equa...

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  13. The equation 8x^(2)+8xy+2y^(2)+26x+13y+15=0 represents a pair of paral...

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  14. If ax^(2)+2hxy+by^(2)+2gx+2fy+c=0 represents parallel lines then

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  15. The lines joining the origin to the point of intersection of the curve...

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  16. The lines joining the origin to the points of intersectio of the curv...

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  17. The equation x-y=4 and x^(2)+4xy+y^(2)=0 represent the sides of

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  18. A diagonal of the rectangle formed by the lines x^(2)-7x+6=0 and y^(...

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  19. If two of the lines ax^(3)+bx^(2)y+cxy^(2)+dy^(3)=0 make complementa...

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  20. If the pairs of lines x^(2)-2pxy-y^(2)=0 and x^(2)-2qxy-y^(2)=0 be su...

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