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Find the angle between the lines joining...

Find the angle between the lines joining the origin to the points of intersection of the straight line `y=3x+2` with the curve `x^(2)+2xy+3y^(2)+4x+8y=11=0`.

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CENGAGE PUBLICATION-STRAIGHT LINES-All Questions
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  9. If the pair of straight lines ax^(2)+2hxy+by^(2)=0 is rotated about th...

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

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

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

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

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

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