Question

Partial fraction decomp:

1/(s^2+4)(s^2+1)=???

Answer 1

can this be decomposed?

Answer 2

if you want it in the form of
\(\large \dfrac{A}{s^2+4}+\dfrac{B}{s^2+1}\)
then, yes.
i would suggest you consider s^2 as x and then do an easy partial fraction for,
\(\dfrac{1}{(x+4)(x+1)}\)

Answer 3

Lap^-1[e^-2PI*s/(s^2+4)(s^2+1)]

Answer 4

hmm okay

Answer 5

so, yes, you need it in that form, can you do the partial with x that i mentioned ?

Answer 6

yeah pretty sure. hold on

Answer 7

(1/3)*1/(s^2+1)+(1/5)*1/(s^2+4)

Answer 8

okay, so -1/3... no 1/5. Got it thank you!

Answer 9

I didn't think to replace s^2 with x.. That took care of it.

Answer 10

your welcome ^_^