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Verified answer
P = { x | 11 < x < 23, x bilanganprima } = {13, 17, 19}
n(P) = 3
Q = { x | 4 < y pangkat 2 < 25 , y
bilangan cacah } = {9, 16}
n(Q) = 2
byk himpunam P ke himpunan Q = n(Q)^n(P) = 2^3 = 8
opsi B. 8
^ dibaca pangkat