Refer to Equation (5.20) and pick an appropriate value for α so that the branch of the logarithm logα(z) will not be analytic along the ray that begins at the origin and passes through z0, where:
((a)) z0=1;
((b)) z0=−1+i3;
((c)) z0=i;
((d)) z0=−i;
((e)) z0=−1−i;
((f)) z0=3−i.