I have been stuck on this one for a while, can som...

Answers ( 1 )

  1. liam thompson
    liam thompson
    Integrating the second order derivative that is f''x =x3 , we get a first order derivative that is
    f ' x = x4/4 + C1 ,
    C1 = 5
    ===> f ' x = x4/4 + 5
    Integrating again,
    f x = 1/4 [ x5/5] + 5x +C2
    C2 as you say is equal to 2,
    Substitute in the f x,
    f x = x5/20 + 5x + 2 is the required function

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