this is a L-R Series Circuit with
V= 240 cos 10t
R= 100 Ohm
L= 20 Henry
It asks to find current in circuit at any time if initially there is no current.
this is from my lecture notes so there is a step im not sure how to get.
d/dt(ie^5t) = 12 e^5t cos 10t
ie^5t = 12 ∫e^5t cos 10t dt
= 12/25 e^5t [cos 10t + 2sin 10t] +c
how do i integrate e^5t cos 10t to get to the next step?
this is the one derived from the product rule for differentiation right?
Originally Posted by Jhevon
that's correct. we use it to integrate products (where possible)
Originally Posted by yen yen