let give f_n (x)= ∫_(1/n) ^n ((sin(xt))/t) e^(−t) dt 1)find lim_(n→∞) f_n (x) 2)find another form of f_n (x) by calculating f


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Question Number 30475 by abdo imad last updated on 22/Feb/18

$l e t g i v e f_{n} (x) = \int_{\frac{1}{n}}^{n} \frac{s i n (x t)}{t} e^{- t} d t$ $1) f i n d {l i m}_{n \to \infty} f_{n} (x)$ $2) f i n d a n o t h e r f o r m o f f_{n} (x) b y c a l c u l a t i n g f_{n}^{^{'}} (x) .$
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