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Find all the values of `x` such that the given series would converge.

` \sum_(n=1)^\infty \frac(x^n)((4)^n (\sqrt(n) +11)) `

The series is convergent
from `x =`   , left end included (enter Y or N):
to `x =`   , right end included (enter Y or N):

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X
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   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
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