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If the slope of one line is double the s...

If the slope of one line is double the slope of another line of the pair of lines `(x^(2))/(a)+(2xy)/(h)+(y^(2))/(b)=0` then `ab:h^(2)=`

A

7ab

B

`-7ab`

C

9ab

D

`-9ab`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-PAIR OF STRAIGHT LINES-PRACTICE SHEET (EXERCISE-1 Homogeneous pair of line) (LEVEL-I Straight Objective Type Questions)
  1. If the slope of one of the lines represented by ax^(2) + 2hxy + by^(2)...

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  2. The difference of the slopes of the lines represented by x^2(tan^2thet...

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  3. If the slope of one line is double the slope of another line of the pa...

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  4. If the slope of one of the line given by 6x^2+2hxy+72y^2=0 " is four t...

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  5. If s and p are respectively the sum and the product of the slopes of t...

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  6. Angle between the lines x^(2)+2xysecalpha+y^(2)=0 is

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  7. If theta is the acute between the pair of lines x^(2)+3xy-4y^(2)=0 the...

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  8. If the angle alpha is acut, then the acute angle between the pair of s...

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  9. Equation of pair of lines through (0,0) and forming an equitateral tri...

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  10. If the product of perpendiculars from (k,k) to the pair of lines x^2+4...

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  11. The line y=3x bisects the angle between the lines ax^2+2axy+y^2=0 if a...

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  12. If one of the lines of my^(2)+(1-m^(2))xy-mx^(2)=0 is a bisector of a...

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  13. If the pairs of straight lines x^(2)-2pxy-y^(2)=0 and x^(2)-2qxy-y^(2)...

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  14. The pair of lines a^(2)x^(2)+2h(a+b)xy+b^(2)y^(2)=0 and ax^(2)+2hxy+by...

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  15. The locus of the points equidistant from the pair of line x^2cos^2thet...

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  16. The straight lines represented by the equation 135x^2+136xy+33y^2=0 ar...

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  17. The combined equation of the lines l(1), l(2) is 2x^(2)+6xy+y^(2)=0 a...

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  18. If the lines x^(2)+(2+h)xy-4y^(2)=0 are equally inclincd to the coordi...

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  19. The area of the triangle formed by two rays whose combined equation is...

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  20. If the area of the triangle formed by the pair of lines 8x^(2)-6xy+y^(...

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