So I understand for this question that f(6)=1 but I have troubles using that information with the f(6+h) part. Any clarification, guidance, examples, or just help in general would be greatly appreciated. Thanks!

For each of the following limits find the value or explain why it does not exist.

(i) lim

_{ββ0+}\(\displaystyle π(6+β)βπ(6)/h\)

(ii) lim

_{ββ0β}\(\displaystyle π(6+β)βπ(6)/h\)

(iii) lim

_{ββ0}\(\displaystyle π(6+β)βπ(6)/h\)