Question

wut is the derivative of 2te^-t

Answer 1

2t(-e^-t)+2e^-t

Answer 2

d/dt 2te^-t
= (e^-t) d/dt (2t) + (2t) d/dt (e^-t)
= 2e^-t + (2t) (e^-t) (-1)
= 2e^-t - 2t (e^-t)
= 2e^-t (1-t)

Answer 3

thanks

Answer 4

welcome :)