Multiple Choice Questions on If f x x3 12x2 36x 17 then find the roots of first derivative of function f x ........ for NDA Exam Preparation

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Multiple Choice Questions

If f x x3 12x2 36x 17 then find the roots of first derivative of function f x ........

Mathematics (NDA) Diffrentiation
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     If f(x)= x3  -12x2  +36x +17,then find the roots of first derivative of function f(x)?

    (2,6)

    Correct Answer

    (2,-6)

    Incorrect Answer

    (2   ,4)

    Incorrect Answer

    (3,5)

    Incorrect Answer
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    Explanation:

    F(x)= x3  -12x2  +36x +17

    Dy/dx =3x2 -24x +36

    Dy/dx =0

    3x2 -24x +36 =0

    x2 -8x +12  =0

    (x-2)(x-6)=0

    X=2  ,6

    By: bhavesh kumar singh
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