Question

Integration.

Answer 1

subsitution method

Answer 2

write
\(z^4 = (z^4 -1)+1\)

Answer 3

then factor z^4 -1

Answer 4

y like that @hartnn

Answer 5

because denominator z^2 -1 is one of the factors of z^4-1

Answer 6

yes @hartnn

Answer 7

so you will simply get

(z^2-1)(z^2+1) +1

in the numerator, right ??
now just separate out the numerators :)

Answer 8

what do you mean by separate out..

Answer 9

like
(a+b)/c = a/c +b/c

Answer 10

im not sure.. but. (z^2 -1 + 1) (z^2 + 1 +1 )

Answer 11

got that ^^ ?