Question

PF of (3x^2-1)/((x-1)^2*(x^2+1))
How would you "engage" this in terms of a,b,c,d?

Answer 1

engage?
never hear that term before

Answer 2

you want to just know how to do it?

Answer 3

Basicly, yes.

Answer 4

The book is first expressing (3x^2-1)/((x-1)^2*(x^2+1)) in terms of a+b+c+d divided by the different factors.

Answer 5

My guess is, that's where I messed up:
a/(x-1)+b/(x-1)^2+(cx+d)/(x^2+1)

Answer 6

that is right so far

Answer 7

Then I guess it's my terrible solving of the "set of equations" that messed up. Wolf apparently solved it using matrixes which is going to be explained 1 chapter ahead from where I am.

Answer 8

I shall revise my solving, thanks for your confirmation about the above-mentioned! :)