integral of 5e^(-0.7x)

2 answers

what is the derivative of -50/7 e^-.7x ?
∫ e^u du = e^u

u = -.7x
du = -.7 dx, so dx = du/-.7
so,
∫5e^(-.7x) dx = 5(1/-.7) e^(-.7x) + C