Question

Diketahui :
A. = {x | 5 < x ≤ 15, x bilangan ganjil}
B = {x | 2 ≤ x < 15, x bilangan prima}
A irisan B adalah...

Answer 1

A={7,9,11,13}
B={2,3,5,7,11,13}
A iris B={7,11,13}

Answer 2

A. = {x | 5 < x ≤ 15, x bilangan ganjil} = {7,9,11,13.15}
B = {x | 2 ≤ x < 15, x bilangan prima}  = {2,3,5,7,11,13}
A irisan B = A n B = {7,11,13}
A gabungan B = A u B = {2,3,5,7,9,11,13,15}

Jadi himpunan A irisan B adalah {7,11,13}
Jadi himpunan A gabungan B adalah {2,3,5,7,9,11,13,15}