Thursday, 11 April 2013

calculus - How do I calculate/prove limits for exponential functions: limlimitsnrightarrowinftyfrac2n+1+3n+12n+3n=3



How do I formally prove that limn2n+1+3n+12n+3n=3. I calculated a few results so I am quite sure that the limit is 3, but I'm struggling on how to do calculate/proof that correctly.


Answer



=2(23)n+3(23)n+1


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