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Find the value of a for which the lines ...

Find the value of a for which the lines represented by `ax^(2)+5xy+2y^(2)=0` are mutually perpendicular.

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CENGAGE PUBLICATION-STRAIGHT LINES-All Questions
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  2. If pairs of straight lines x^2-2pxy-y^2=0and x^2-2qxy-y^2=0 be such th...

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  3. Find the value of a for which the lines represented by ax^(2)+5xy+2y^(...

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  4. Find the acute angle between the pair of lines represented by x(cosalp...

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  5. If the angle between the lines represented by 2x^2+5xy+3y^2+7x+13y-3=0...

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  6. If the pair of straight lines ax^(2)+2hxy+by^(2)=0 is rotated about th...

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  7. The orthocenter of the triangle formed by the lines xy=0 and x+y=1 is

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  8. The lines joining the origin to the point of intersection of 3x^(2)+...

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  9. If the slope of one line is double the slope of another line and the c...

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  10. Find the combined equation of the pair of lines through the point (1,0...

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  11. The value k for which 4x^(2)+8xy+ky^(2)=9 is the equation of a pair of...

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  12. The two lines represented by 3ax^(2)+5xy+(a^(2)-2)y^(2)=0 are perpendi...

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  13. If two lines represented by x^4+x^3y+c x^2y^2-x y^3+y^4=0 bisector of ...

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  14. The straight lines represented by x^2+m x y-2y^2+3y-1=0 meet at (a) (-...

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  15. The straight lines represented by the equation 135 x^2-136 x y+33 y^2=...

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

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  17. Statement 1 : If -2h=a+b , then one line of the pair of lines a x^2+...

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  18. Show that all chords of the curve 3x^(2)-y^(2)-2x+4y=0, which subtend...

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  19. The distance between the lines (x+7y)^(2)+4sqrt(7)(x+7y)-42=0 is .

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  20. x+y=7andax^(2)+2hxy+ay^(2)=0,(ane0), are three real distinct lines for...

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