Hello
Problem:
Find a limit definition for $\displaystyle f''(x)$ similar for $\displaystyle f'(x)=\lim_{h\to 0} \frac{f(x+h)-f(x)}{h}$, Your limit should not have any $\displaystyle f'$. i.e., it must be in terms of $\displaystyle f$ only.
Hello
Problem:
Find a limit definition for $\displaystyle f''(x)$ similar for $\displaystyle f'(x)=\lim_{h\to 0} \frac{f(x+h)-f(x)}{h}$, Your limit should not have any $\displaystyle f'$. i.e., it must be in terms of $\displaystyle f$ only.