Post a New Question

math

posted by .

If f(x)=x^2+2 then f(x+h)=???

  • math -

    (x+h)^2 + 2

    = x^2 + 2 x h + h^2 + 2

    the are getting you ready to find the derivative
    which is the limit as h -->0
    of
    [f(x+h) - f(x) ]/h
    which here would be
    limit as h -->0 of
    (2 x h + h^2)/h
    or
    2 x + h
    as h -->0
    is
    2x
    which is df(x)/dx

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question