Multiple Choice Questions on Find the value of lsquo a rsquo for which the point a 2 a lies inside the parabola y2 4x ........ for NDA Exam Preparation

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Multiple Choice Questions

Find the value of lsquo a rsquo for which the point a 2 a lies inside the parabola y2 4x ........

Mathematics (NDA) Coordinate Geometry
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    Find the value of ‘a’ for which the point (a-2 ,a) lies inside the parabola y2 =4x ?

     a=2

    Incorrect Answer

    a=0

    Incorrect Answer

    a=1

    Incorrect Answer

    a=ø

    Correct Answer
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    Explanation:

    Parabola y2=4x

    y2-4ax<0

    Point (a-2 ,a)  lies inside

    y2  -4x <0

    a2 -4 (a-2)<0 a2 -4a+8<0

    a=(4±√16-32 )/2

    a=imaginary

    a=ø

    By: bhavesh kumar singh
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