Multiple Choice Questions on The second degree equation x2 4y ndash 2x ndash 4y 2 0 represents ........ for NDA Exam Preparation

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Multiple Choice Questions

The second degree equation x2 4y ndash 2x ndash 4y 2 0 represents ........

Mathematics (NDA) Coordinate Geometry
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    The second degree equation x2 + 4y – 2x – 4y + 2 = 0 represents

    A point

    Correct Answer

     An ellipse of semi-major axis 1

    Incorrect Answer

    An ellipse with eccentricity √3/2

     
     
    Incorrect Answer

    None of the above

    Incorrect Answer
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    Explanation:

    (x2−2x+1)+(4y2−4y+1)=0
    ⇒(x−1)2+(2y−1)2=0
    ⇒x=1,y=1/2
    It is a point

    By: Munesh Kumari
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