Thank you for your reply Mark
Following your advice I got this,
Second Attempt at the Solution,
writing givens as the definition of limits
if ##|x-a|<\delta## then ##|x^4-a^4|<\epsilon##
factoring out the right side of the condition
##|(x-1)(x^3+a^2x+ax^2+a^3)|<\epsilon##
choose...
I've pondered at this problem for a long time, and I don't know where I make a mistake, can anyone give me a hint?
1. Homework Statement
find a ##\delta## such that ##|f(x)-L|<\epsilon## for all x satisfying ##0<|x-a|<\delta##
Homework Equations
[/B]
##f(x)=x^4##; ##l=a^4##The Attempt at a...