Question

determine laurent series 1/z(z^2-3z+2) about z=0 for the region

Answer 1

Answer:

f(z)=1z2−3z+2

 

=1(z−2)(z−1)=A(z−2)+B(z−1)

After finding common denominator, equating the numerators, and letting z=0, we get:

=1(z−2)(z−1)=1(z−2)+−1(z−1)

Letting w=z−2, we get:

f(w)=11−(−w+1)−11−(−w)

Step-by-step explanation: