Multiple Choice Questions on Given function f x 4 x 8 find the type of function ........ for NDA Exam Preparation

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Multiple Choice Questions

Given function f x 4 x 8 find the type of function ........

Mathematics (NDA) Diffrentiation
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    Given  function f(x)=  4/x  +8 find the type of function ?

     strictly decreasing

    Correct Answer

     decreasing

    Incorrect Answer

     increasing

    Incorrect Answer

     none of these

    Incorrect Answer
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    Explanation:

    f(x)=  4/x  +8 

    df(x)/dx  =4 (- x-2)  +0 

    =  -4/x2

      X2  >0   x   ≠  0

    F’(x)<0

    Function strictly decreasing

    By: bhavesh kumar singh
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