Thread: Partial fractions

I think you solve this by parial fractions,but not sure
The question is, the admittance of an electronic circuitis given by

A = 2f+1/(f+3)(f-3) where f is the frequency
(i) Express A as the sum of a partial fraction
(ii)Intregrate A with respect to f

Originally Posted by Jaffa

I think you solve this by parial fractions,but not sure
The question is, the admittance of an electronic circuitis given by

A = 2f+1/(f+3)(f-3) where f is the frequency
(i) Express A as the sum of a partial fraction
(ii)Intregrate A with respect to f

Well, the fact that it says "partial fractions" should ease any doubts you have! Partial fractions means choosing numbers A and B such that
One way to find A and B is to multiply both sides by (f-3)(f+3) to get rid of the fractions, the set f to whatever two values you want to get two equations to solve for A and B.