Question

Proszę o pomoc zadanie w załączniku:)PROSZE

Answer 1

A={10, 16, 20}

B={10, 12, 14, 16, 18, 20}
D={13, 14, 15, 16, 17, 18, 19, 20}

 

a)AnB={10, 16, 20}
b)A-B= zbiór pusty
c)AuB={10, 12, 14, 16, 18, 20}
d)AuBuD={10, 12, 13, 14, 15, 16, 17, 18, 19, 20}
e)C-B={..., -2, -1, 0, 1, 2, ..., 9, 11, 13, 15, 17, 19, 21, 22, 23, ...}
f)AnBnD={16, 20}

g)R+ n R-= zbior pusty
h)C-C_-={0, 1, 2, 2, ...}=N

i)NuR= R
j)IWuW= R
k)R-R_-= R+u{0}

l)WnN=N