Question

Techniques for Evaluating Limits

Answer 1

depends on the question, you basically play with the basic limit formula
\[\lim=\frac{f(x+\delta x)-f(x)}{\delta x}\]

Answer 2

i am trying to attach

Answer 3

there's a couple of other limit formulas but those are derived and you can find those in text books or search google, depending on your question i can pin point specific "techniques"