\( f(x)=\int_{1}^{x} \frac{e^{t}}{t} d t, x \in R^{+} \). Then comp... VIDEO
\( f(x)=\int_{1}^{x} \frac{e^{t}}{t} d t, x \in R^{+} \). Then complete set of values of \( x \) for which \( f(x) \leq \)
\( \mathrm{P} \) \( \ln x \) is
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(A) \( (0,1] \)
(B) \( [1, \infty) \)
(C) \( \quad(0, \infty) \)
(D) None of these
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