Question

Imi puteti explica cum  se rezolva acest exercitiu ?

Answer 1

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!