Multiple Choice Questions on Find the slope of the tangent to the ellipse 7x2 8y2 100 at the point 2 ndash 3 ........ for NDA Exam Preparation

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Multiple Choice Questions

Find the slope of the tangent to the ellipse 7x2 8y2 100 at the point 2 ndash 3 ........

Mathematics (NDA) Coordinate Geometry
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    Find the slope of the tangent to the ellipse 7x2 + 8y2 = 100 at the point (2, –3)?

    7/11

    Incorrect Answer

    7/12

    Correct Answer

    -5/12

    Incorrect Answer

    9/12

    Incorrect Answer
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    Explanation:

    ellipse 7x2 + 8y2 = 100

             7x2 /100 + 8y2 /100 = 1

              x2 /100/7 + y2 /25/2 = 1

    tangent at point(2,-3)

    14x/100  -6y/25 =1

    14x-24y =1

    Y=7x/12  +1

    Slope=7/12

    By: bhavesh kumar singh
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