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Cel mai inteligent răspuns!
2014-01-25T11:04:54+02:00
Salve!

lnx = t => (1/x)dx = dt;

pt. x = 1 => t = 0;
pt. x = e*e => t = 2;

integrala ta definita devine:  \int\limits^2_0 {(1+t)} \, dt =>

(2 +   \frac{ 2^{2} }{2}  ) - (0 +   \frac{ 0^{2} }{2}  ) = 4.

Salutare!
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