Multiple Choice Questions on If f x 3x2 7x 8 5x2 12x 9 then limx 3 f x will be ........ for NDA Exam Preparation

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Multiple Choice Questions

If f x 3x2 7x 8 5x2 12x 9 then limx 3 f x will be ........

Mathematics (NDA) limits
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    If f(x) =3x2 -7x +8 /5x2 -12x -9 ,then limx-3 f(x) will be ?

    -5/18

    Incorrect Answer

    5/18

    Incorrect Answer

    7/18

    Incorrect Answer

    11/18

    Correct Answer
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    Explanation:

    f(x)  =3x2  -7x +8 /5x2 -12x -9

    =limx-  3 3x2  -7x +8 /5x2 -12x -9

    Limt is 0/0

    using L hospital rule

    limx-  3  6x -7  /10x  -12

    = 11/18

    By: bhavesh kumar singh
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