given f(x)=1/x , find f(x+h) - f(x)
h
i haven't done anything on the problem because i am confused on how to plug it in.
given f(x)=1/x , find f(x+h) - f(x)
h
i haven't done anything on the problem because i am confused on how to plug it in.
Try
[{ 1 / (x + h) } - (1 / x) ] / h
then multiply both numerator and denominator by x(x+h)
the result is
(x - x - h) / [hx(x + h)]
the -h cancels with an h in the denominator and the final result is
-1 / x(x + h)
:-?