Question

Integrala din e la puterea -2x

Answer 1

[tex] \int\limits {e^{-2x}} \, dx =\int e^t\cdot \frac{-dt}{2} =-\frac{1}{2}e^t+C=-\frac{1}{2}e^{-2x}+C\\ -2x=t\\ -2dx=dt\\ dx= \frac{dt}{-2} [/tex]