Giải thích các bước giải:
$A=${$1;2;6;8;15;17$}
$B=(3;10]$
$⇒A ∪ B=(3;10]∨${$1;2;15;17$}
$⇒A ∩ B=${$6;8$}
$⇒A$\$B=${$1;2;15;17$}
$⇒B$\$A=(3;10]$\{$6;8$}
Làm hộ mk bài này vs hứa 5*+ctlhn
phóng to giúp mình nha đang cần gấp mn giúp
Giúp mình với, còn mấy câu nữa nhưng mà ko đăng đc :(((
1. This vocabulary book is really useful. It.......................................................................ten units with lots of new words for us to learn. 2. The book also.......................................................................us with effective exerc1ses to understand new words in real contexts. 3. A: “What’s.......................................................................?” - B: “It consists of parents and their children.” 4. My sister and I.......................................................................doing the washing up. When she’s busy, I help her to fulfill her duty and so does she when I am busy. 5. Although she is busy learning and preparing for her exams, she’s.......................................................................to help her mom anytime she needs. 6. Both father and mother in a family should.......................................................................to contribute educating their children. 7. My younger brother usually helps mom and dad.......................................................................the table. He seems to be very happy with it. 8. Can you show me how to.......................................................................this new photocopier" 9. In the modem world, both women and men try to work as hard as they can to share family's financial......................................................................., so they don t have enough time to play with their kids at all. 10. Some poor families don’t have enough.......................................................................to pay for their children education. Therefore, their children have to go to work at the very early age. 11. My father can’t cook, but he’s very good at........................................................................ He usually helps mom fix the washing machine, fridge or replace dim light bulbs. 12. Everyone in the room stood up and gave a big applause for her great........................................................................ 13. She helps her mother........................................................................ You can know this by looking at her facial expression. She looks rather upset. 14. VNPT is one of the Internet.......................................................................in Vietnam.
Giúp mình với Có mỗi 1 bài thui
em đang cần gấp em gần nộp rồi mong mọi người giúp đỡ em nhanh vơi ạ
How do you feel about your father
Write a new sentence using the word in brackets. Do not alter the word in any way. 1. What exactly do the letters AM and PM mean? (stand) _______________________________________________________________ Without Jane, I would never have made it to the top. (been) _________________________________________________ Cathy hasn’t been on holiday with her sister before. (first) _________________________________________________ Her husband doesn’t agree if she goes to work. (disapproves) _________________________________________________ giúp em với ạ
em đang cần gấp lắm mong mọi người giúp đỡ em nhanh với ạ
Cho hình vuông và một tam giác có chu vi bằng nhau.Hỏi hình nào có diện tích lớn hơn
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