Determine the location and nature of singularities in the finite z plane of the following functions:
(a) f(z) = ( - 1) sin(z)/[z(z+1)(z+2)(z-3)]
(b) g(z) = [1 + cos(z)]/
Using Cauchy's intergral formulae, referring to the above functions,
Evaluate
i) f(z) dz, with C : | z + j | = 4 ...