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If 12x^(2)-10xy+2y^(2)+11x-5y+c=0 repres...

If `12x^(2)-10xy+2y^(2)+11x-5y+c=0` represents a pair of lines then `c=`

A

1

B

2

C

-1

D

-2

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The correct Answer is:
B
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MARVEL PUBLICATION-PAIR OF STRAIGHT LINES-TEST YOUR GRASP
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  7. If the two lines kx^(2)+5xy+9y^(2)=0 are equally inclined with the cor...

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  8. Combined equation of the two lines passing through the origin, forming...

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  9. If the lines 3x^(2)-kxy-3y^(2)=0 and x+2y=8 form and isosceles triangl...

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  10. Length of each leg of an isosceles right angled triangle, formed by th...

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  12. If the angle between the lines ax^(2)+xy+by^(2)=0 is 45^(@), then

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  15. Lines represented by the equation 5x^(2)-2xy+2y^(2)=0 are

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  16. If one of the lines kx^(2)+xy-y^(2)=0 bisects an angle between the co-...

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  17. Measure of angle between the lines sqrt(2)(x^(2)+y^(2))=4xy is

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  18. If the angle between the lines 3x^(2)-4y^(2)=0 is tan^(-1)k, then k=

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