## anonymous 5 years ago use the definition of derivative to find the derivative of f(x)=1/x+3

1. anonymous

x^-1+3=(-1)x^-2=-1/x^2

2. anonymous

what is the formula for the definition of derivatives?

3. nikvist

$f'(x)=\lim_{h\rightarrow0}\frac{f(x+h)-f(x)}{h}$