a) tìm GTNN của biểu thức: A=x^2+3|y-2|-1 b) tìm GTLN của biểu thức: B=1/|x-2|+3 mik cần gấp giúp mik vs 5 sao cho câu trả lời nhanh nhất

Các câu hỏi liên quan

Put the verb in brackets into the correct form (Simple present and Present continuous) 1. John (play)………………...football at the moment. 2. We often (write)………………….tests at our school. 3. I (talk)……………….…..to my teacher now. 4. Look! Mandy and Susan (watch)……………..…a film on TV. 5. Olivia (visit)………………..her uncle every weekend. 6. Now the sun (shine)………..……. . 7. They sometimes (read)……………….. poems in the lessons. 8. Listen! The band (test)…………………the new guitar. 9. Every morning, my mother (get)…………………up at 6 o’clock. 10. It’s seven o’clock and they (go)……………..…. to school now. 11. Mrs. Cooper (eat) …………………..in the restaurant every Sunday. 12. Our cat never (jump)……………..…… on the kitchen table. 13. Look! The men (wear)………………… blue uniforms. 14. Mr. Curt always (play)…………………. his guitar in the afternoon. 15. After breakfast, Sally usually (cycle)……..……… to school. 16. After school, she (go)……………….... back home. 17. Sally usually (have) ………..…….her lunch at home. 18. What……….she (do)………… now? -> She ……….……. (play) the guitar. 19. Her friends are listening and some of them ……………….. (sing)along. 20. The taxi (wait)……………..… for them at the moment. 21. He always (help)……………..….. his grandmother with the housework. 22. Listen! Bill (play) ……………….….his electric guitar. 23. He (wash)…………………... his car every Sunday. 24. My uncle(live)….. ……….…. in a house near the river because he (like)………. …… swimming. 25. Every Sunday morning, my mother (walk)… …………… in the park. 26. Be careful! The teacher (look)………….. ……… at you. 27. In summer, it (be) …… ……. very hot, so he often (go)…… …… to the seaside on holiday. 28. My mother (cook)….……………in the kitchen at the moment. 29. She (not /want)…………. ….any coffee. She (want)… …….…some tea. 30. They (not/go)………..…..fishing in winter.