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**reeha** I have no notes on pointwise limit functions or their application to uniform convergence, and thus am having huge problems wth these questions because don't know how to start, or how to use my answer to determing uniform convergence.

For eachof the following sequences {fn} of functions, find the pointwise limit functon f (f it exists) on the given interval and decide whether {fn{ converges uniformly to f:

a) fn(x) = nthroot(x) on [0,1]

b) fn(x)=e^x / x^n on (1, infinity)

c) fn(x) = e^(-x^2)/n on R

Perhaps one worked through would be enough for me to tackle the other but I'm not sure please help!!!