Over the real line, prove that
lim
I've tried L Hospital Rule, which gets too complicated and I'm trying by Squeeze theorem now.
Answer
Hint:
\frac{x+a}{x-a}=1+\frac{2a}{x-a}
I have injection f \colon A \rightarrow B and I want to get bijection. Can I just resting codomain to f(A)? I know that every function i...
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