Consider the function
f(z)=((z²-4)(z²-4z+3))/((z-1)²(z²-6z+8)²)
(a) Identify all singularities of f.
(b) Identify all zeros of f
and their multiplicities. (c) Identify the removable singularities (if any) and poles and their orders (if any).
Evaluate ∫f where range is the circle |z|=3 in ccd