Asked by Hamdi
                lim n infty (n^ 2 cos( 6 n^ 2 + pi 2 ))=
            
            
        Answers
                    Answered by
            oobleck
            
    not sure what "pi 2" means, but as n gets large, it's irrelevant, and you just have cos(6n^2)
Since cosine oscillates, the limit is undefined.
    
Since cosine oscillates, the limit is undefined.
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