Math Help - logarithm

1. logarithm

i really need help in this , i have no idea at all , help!

Use logarithms to find all solutions of the following equations
(a)
e^z= e

(b) e^z= e^(-z)

2. a) $e^{z} = e \rightarrow z= 1 + 2 k \pi i$

b) $e^{z} = e^{-z} \rightarrow z = k \pi i$

... where in both cases k is an integer...

Kind regards

$\chi$ $\sigma$