1. π΄ = {π₯βπ₯ β β, x β€ 7}; π΅ = {π₯βπ₯ β β, π₯ < 5} 2. A ο B; A ο B; A ο B; B ο A; AοB
ο¦ x 2 ο« y 3 οΆο¦ 3xy ο 5 οΆ ο§ ο· ο·ο§ ο· ο§ 2 xy οΈο¨ 3 ο« 2 x ο·οΈ ο¨ 2*5 5ο 7 *7 1 4. a ο½ 5ο6 2 3 3.
3
π
β =πππ 5. πΜ
= π π
6. ο³ ο½ 7. 8. 9.
ο₯
n
i ο½0
π¦ βπ¦ π= 2 1 π₯2 βπ₯1 1 9β3Γ·3+
xi2 fi ο x2 N 1β β
ο©ο¦ ο° οΆ οΉ 3 οͺο§ 2 ο· ο« 1οΊ ο« {2 ο [3 ο (2 * 4) ο 2] * 3 ο« 5} ο«ο¨ οΈ ο»
10. 2β3 + βπ2 + π 2