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If slopes of lines represented by kx^(2)...

If slopes of lines represented by `kx^(2)+5xy+y^(2)=0` differ by 1, then k=

A

2

B

3

C

6

D

8

Text Solution

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The correct Answer is:
C
NA
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TARGET PUBLICATION-PAIR OF STRAIGHT LINES-COMPETITIVE THINKING
  1. If the gradient of one of the lines given by x^(2)+hxy+2y^(2)=0 is twi...

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  2. If the slope of one of the lines given by ax^(2)+2hxy+by^(2)=0 is two ...

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  3. If slopes of lines represented by kx^(2)+5xy+y^(2)=0 differ by 1, then...

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  4. If the ratio of gradients of the line given by ax^(2)+2hxy+by^(2)=0 i...

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  5. if X^2/a+y^2/b+(2xy)/h=0 represent pair of straight lies and slope one...

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  6. The angle between the straight lines x^(2)-y^(2)-2x-1=0, is

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  7. Acute angle between the lines represented by (x^2+y^2)sqrt(3)=4xy is ...

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  8. The angle between the pair of straight lines x^(2)+4y^(2)-7xy=0 is

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  9. The angles between the lines represented by the equation 4x^(2)-24xy+1...

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  10. The angle between the lines x^(2)+2xysec theta+y^(2)=0 is

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

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  12. The lines represented by the equation 23x^(2)-48xy+3y^(2)=0 and 2x+3y+...

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  13. The nature of straight lines represented by the equation 4x^(2)+12xy+9...

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  14. The equation x^(2)+ky^(2)+4xy=0 represents two coincident lines if k=

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  15. if lines represented by equation px^(2)-qy^(2)=0 are distinct, then

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  16. The angle between the pair of straight lines y^(2)sin^(2)theta-xy sin^...

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  17. Which of the following equation does not represent a pair of li...

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  18. The angle between the lines 3x^(2)+7xy+2y^(2)+5x+5y+2=0 is given by

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  19. The equation xy+a^2=a(x+y) represents

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  20. If ax^(2)-y^(2)+4x-y=0 represents a pair off lines then a=

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