I got 2 questions, which seems hard to follow any ideas in how to start off?
SetS of generators of group G is called a minimal set of generators if
for all s 2 S, the set S n fsg is no longer a set of generators. Find a minimal
set of generators for D6
and this one is complex
Use complex numbers to prove that cos4(beta)+ sin4 (beta)=(1/4)(3 + cos 4(beta)).
Any help is appreciated