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The equation x^(2)+kxy+y^(2)-5x-7y+6=0 r...

The equation `x^(2)+kxy+y^(2)-5x-7y+6=0` represents a pair of straight lines, then `k` is

A

`5/3`

B

`10/3`

C

`3/2`

D

`3/10`

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The correct Answer is:
B
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TARGET PUBLICATION-PAIR OF STRAIGHT LINES-COMPETITIVE THINKING
  1. Which of the following equation does not represent a pair of li...

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

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

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

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  5. If the equation kxy+10x+6y+4=0 represents a pair of lines then : k=

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  6. The equation x^(2)+kxy+y^(2)-5x-7y+6=0 represents a pair of straight l...

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  7. The point of intersection of lines represented by x^(2) -y ^(2) ...

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  8. If 2x^(2)-10xy+2 lamday^(2)+5x-16y-3=0 represents a pair of straight l...

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  9. Let L be the line joining the origin to the point of intersection of t...

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  10. The line 5x+y-1=0 coincides with one of the lines given by 5x^(2)+xy-k...

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

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  12. The angle between the lines in x^2-xy-6y^2-7x+31y-18=0 is

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  13. If the angle between the pair of straight lines represented by the equ...

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  14. If the angle between the two lines represented by 2x^(2)+5xy+3y^(2)+6x...

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  15. The acute angle formed between the lines joining the origin to the poi...

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  16. The straight lines joining the origin to the points of intersection of...

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  17. If the lines joining the origin and the point of intersection of curve...

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  18. The pair of straight lines joining the origin to the points of interse...

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  19. The orthocenter of the triangle formed by the lines x+y=1 and 2y^(2)-x...

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  20. Joint equation of the diagonals of the square formed by the pairs of l...

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