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Thread: Pair of Straight lines

  1. February 21st 2013, 01:27 AM #1
    Suvadip
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    Pair of Straight lines

    If each of the equations ax^2+2hxy+by^2+2gx+2fy+c=0 and ax^2+2hxy+by^2-2gx-2fy+c=0 represents a pair of straight lines , find the area of the parallelogram enclosed by them .

    Please help
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  2. February 21st 2013, 11:42 PM #2
    chiro
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    Re: Pair of Straight lines

    Hey Suvadip.

    Hint: Did you find the points of intersection between these objects?
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