Răspunsuri

2014-11-18T20:47:28+02:00
0<n ≤ 4⇒n∈{1,2,3,4}
x = 2 ^n⇒x=2¹=2

x=2²=4
x=2³=8
x=2⁴=16

B={2,4,8,16}