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One of the lines represented by the equa...

One of the lines represented by the equation `ax^(2)+bxy+cy^(2)=0` bisects an angle between the co-ordinate axes

A

a,b,c are in AP

B

a,b,c are in G.P.

C

a,b,c are in H.P

D

`a+b+c=0`

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The correct Answer is:
D
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TARGET PUBLICATION-PAIR OF STRAIGHT LINES-CRITICAL THINKING
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  2. If the line given by ax^(2)+2hxy+by^(2)=0 are equally inclined to the ...

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

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

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

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

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

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

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

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

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  11. If the angle between the lines represented by the equation y^2+kxy-x^2...

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  12. If acute angle between lines ax^(2)+2hxy+by^(2)=0 is congruent to that...

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  13. If the acute angle between the pairs of lines 3x^2-7xy+4y^2=0 and 6x^2...

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  14. The lines a^2x^2+bcy^2=a(b+c)xy will be coincident , if

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  15. If the lines (p-q)x^2+2(p+q)xy+(q-p)y^2=0 are mutually perpendicular ,...

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  16. The two lines represented by 3a x^2+5x y+(a^2-2)y^2=0 are perpendicula...

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  17. The angle between the lines given by the equation alphay^(2)+(1-alpha^...

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  18. If the equation ax^(2)+ay^(2)+2gx+2fy+c=0 represents a pair of lines t...

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  19. If the equation ax^2+by^2+cx+cy=0 represents a pair of straight lines ...

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  20. If the equation hxy + gx + fy + c = 0 represents a pair of straight li...

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