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If slope of one of the lines ax^(2)+2hxy...

If slope of one of the lines `ax^(2)+2hxy+by^(2)=0` is 5 times the slope of the other then `5h^(2)=`

A

`ab`

B

`2ab`

C

`7ab`

D

`9ab`

Text Solution

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The correct Answer is:
D
NA
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TARGET PUBLICATION-PAIR OF STRAIGHT LINES-CRITICAL THINKING
  1. If one of the lines represented by the equation ax^2+2hxy+by^2=0 is co...

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  2. If the sum of the slopes of the lines represented by the equation x^(2...

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  3. If slope of one of the lines ax^(2)+2hxy+by^(2)=0 is 5 times the slope...

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  4. The condition that the gradient of one line is twice is gradient of an...

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  5. If the slope of one of the lines represented by the equation ax^2+2hxy...

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  6. If the slope of one of the lines represented by ax^(2)+2hxy+by^(2)=0 b...

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  7. If m(1),m(2) are slopes of lines represented by 2x^(2)-5xy+3y^(2)=0 th...

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  8. If two lines ax^(2)+2hxy+by^(2)=0 are equally inclined with co-ordina...

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  9. Difference of slopes of the lines represented by the equation x^2(sec^...

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  10. The difference of the tangents of the angles, which the lines (tan^(...

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  11. The equation of the pair of straight lines, each of which makes an ang...

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  12. If the line given by ax^(2)+2hxy+by^(2)=0 are equally inclined to the ...

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  13. One of the lines represented by the equation ax^(2)+bxy+cy^(2)=0 bisec...

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  14. If the equation ax^(2)+2hxy+by^(2)=0 has one line as the bisector of a...

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  15. If the lines represented by the equation 2x^2-3xy+y^2=0 make angles al...

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  16. If the lines represented by the equation ax^(2)-bxy-y^(2)=0 make angle...

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  17. If the acute angle between the lines ax^(2) + 2hxy + by^(2) = 0 is 60^...

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  18. Find the angle between the lines repersented by the equation x^2-2pxy+...

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  19. The angle between the lines represented by the equation (x^(2)+y^(2))s...

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  20. The angle between the lines represented by the equation ax^(2)+xy+by^(...

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