Question

descreva o conjunto das partes do seguinte conjunto a={-5,7,11,14}

Answer 1

Vejamos:
a= 4 elementos. >>>>nP(a) = 2^a =2^4=16
C={Vz,(-5),(7), (11), (14), (-5,7), (-5,11), (-5,14), (7,11)
(7,14), (11,14), (-5,7,11), (-5,7,14), (-5,11,14), (7,11,14),
(-5,7,11,14)}
Obs: Vz=conj. vazio.