Fie \( f:R \to (0,\infty) \) o functie integrabila a.i. \( \lim_{x \to \infty} {\int^x_0 f(t) dt}= \infty \). Sa se arate ca \( \lim_{x \to \infty} {\frac{1}{x} \int^x_0{(x-t)f(t)dt}}=\infty \).
Gabriel Dospinescu
Limita unei integrale
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