Friday, 23 September 2016

calculus - proving limlimitsxtoinftyfracx2x2+sin2x=1



I have to prove the following equation for homework
limxx2x2+sin2x=1



The proof must be done by proving that for every e>0 exists a M>0 so that for every x>M, |f(x)1|<e is true.



I can't seem to figure this one out.




I would greatly appropriate anyone who tries to help me out :) Thanks


Answer



|x2x2+sin2x1|=sin(x)2x2+sin2x1x2



Now making 1x2ϵ gives you the M....


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