Răspuns :
Explicație pas cu pas:
16<=x<=36 si x€N, rezulta ca x={16,17,18,19,...,34,35,36}
D={5, 16, 17,...,35, 36}
iar card D= 22 elemente
Răspuns:
card (D) = 22
D = {5, 16, 17, 18, 19,......., 35, 36}
Explicație pas cu pas:
D = {x ∈ NI | x; 5, 16 ≤ x ≤ 36}
16 ≤ x ≤ 36 ⇒
x∈{16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,31,33,34,35,36}
D = {5, 16, 17, 18, 19,......., 35, 36}
card (D) = 1 + [(36 - 16) : 1]
card (D) = 1 + (20 : 1) + 1
card (D) = 1 + 20 + 1
card (D) = 22 elemente