Question

a)D4,D8,D9,D10,D20 b)D4 intersectat cu D8,D4 intersectat cu D20 D8 intersectat D9,D10 intersectat cu D20 c)d=(4,8);d=(8,9);d=(10,20)

Answer 1

(4, 8) = 4

(8, 9) = 1

(10, 20) =10

D₁₀ = {1, 2, 5, 10}

D₂₀ ={1, 2, 4, 5, 10, 20}

D₁₀ ∩ D₂₀ ={1,  2,  5, 10}