I've already proven the first part but in (ii) I managed to get until
un+1=√9−ϵ−1
I don't know how to show the approximation answer.
Answer
un+1=3√1−ϵ9−1=3(1−ϵ9)12−1≈3(1−12⋅ϵ9)−1=2−ϵ6
I have injection f:A→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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