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Question Number 133300 by SEKRET last updated on 21/Feb/21

Commented by Dwaipayan Shikari last updated on 21/Feb/21

Diverges

$${Diverges} \\ $$

Commented by mnjuly1970 last updated on 21/Feb/21

  ∫_0 ^( ∞) ((ln(x))/e^x )dx=−γ (euler−mascheroni    constant)   but ∫_0 ^( ∞) (1/(e^x ln(x)))dx  is divergent..

$$\:\:\int_{\mathrm{0}} ^{\:\infty} \frac{{ln}\left({x}\right)}{{e}^{{x}} }{dx}=−\gamma\:\left({euler}−{mascheroni}\right. \\ $$$$\left.\:\:{constant}\right) \\ $$$$\:{but}\:\int_{\mathrm{0}} ^{\:\infty} \frac{\mathrm{1}}{{e}^{{x}} {ln}\left({x}\right)}{dx}\:\:{is}\:{divergent}.. \\ $$

Answered by mnjuly1970 last updated on 21/Feb/21

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