If lim then prove using the limit definition that: \displaystyle \lim_{n\to\infty} -2a_n=-2L.
From the given and the definition we know that: $L-\epsilon
I feel like I was cheating by doing that multiplication by -2, is it alright? it's still true for 2\epsilon right?
Answer
The general idea of you solution is very much correct. The only thing that is missing is that we have: $L-\epsilon
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