Cho hàm số \(y = f\left( x \right)\). Biết rằng phần hình phẳng giới hạn bởi \({S_1}\) và \({S_2}\) (xem hình vẽ) có diện tích lần lượt bằng \(7\) và \(2\).
Tích phân \(\int\limits_{ - 1}^4 {f\left( x \right){\rm{d}}x} \) bằng
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- Mạch khuếch đại thuật toán để thực hiện trừ hai tín hiệu điện áp đầu vào là mạch
Nước ta nằm hoàn toàn trong khu vực nội chí tuyến nên có
Animiz hỗ trợ các loại tệp âm thanh nào?
Nguyên tử không mang điện vì
Có mấy nguyên tắc trong thiết kế kĩ thuật?
Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.
a. Despite the political turmoil in the world today, we can all agree that life isn’t always perfect.
b. We face hardships to become stronger, recognize our strengths, and appreciate life's beauty.
c. However, pushing through difficult times is not always easy.
d. Regardless of how much money we make, how many friends we have, or how great our jobs are, everyone experiences ups and downs. Life is life.
e. Recently, my social media feeds have been overwhelmed with negative and depressing news, particularly regarding politics.
f. I wonder if you feel the same way; it's hard to escape it.
Uỷ hội sông Mê Công gồm không có quốc gia nào?
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 28 to 34.
Foot-racing is a popular activity in the United States. It is seen not only as a competitive sport but also as a way to exercise, to enjoy the camaraderie of like-minded people, and to donate money to a good cause. Though serious runners may spend months training to compete, other runners and walkers might not train at all. Those not competing to win might run in an effort to beat their own time or simply to enjoy the fun and exercise. People of all ages, from those of less than one year (who may be pushed in strollers) to those in their eighties, enter into this sport. The races are held on city streets, on college campuses, through parks, and in suburban areas, and they are commonly 5 to 10 kilometers in length.
The largest footrace in the world is the 12-kilometer Bay to Breakers race that is held in San Francisco every spring. This race begins on the east side of the city near San Francisco Bay and ends on the west side at the Pacific Ocean. There may be 80,000 or more people running in this race through the streets and hills of San Francisco. In the front are the serious runners who compete to win and who might finish in as little as 34 minutes. Behind them are the thousands who take several hours to finish. In the back of the race are those who dress in costumes and come just for fun. One year there was a group of men who dressed like Elvis Presley, and another group consisted of firefighters who were tied together in a long line and who were carrying a fire-hose. There was even a bridal party, in which the bride was dressed in a long white gown and the groom wore a tuxedo. The bride and groom threw flowers to bystanders, and they were actually married at some point along the route.The main purpose of this passage is to _________.
Năm 2020, nước ta đón 197,8 triệu lượt khách du lịch và doanh thu đạt 111,7 nghìn tỉ đồng. Tính doanh thu trung bình từ một lượt khách du lịch năm 2020. (làm tròn kết quả đến hàng đơn vị của nghìn đồng)
- Cảm kháng của cuộn dây trên đoạn mạch điện xoay chiều giảm xuống khi
Nguyên tử luôn trung hoà về điện nên
Thuỷ phân hoàn toàn saccharose (C\(_{12}\)H\(_{22}\)O\(_{11}\)) trong môi trường acid, thu được sản phẩm nào?
Việc thị trường thừa nhận công dụng xã hội của hàng hoá và lao động đã hao phí để sản xuất ra nó, thông qua việc hàng hoá có bán được hay không và bán với giá như thế nào thể hiện chức năng gì của thị trường?
Đối tượng nghiên cứu của sử học là gì?
Read the following passage about the cultural diversity and mark the letter A, B, C, or D to indicate the best answer to each of the following questions from 31 to 40.
[I] In today’s globalized world, cultural diversity has become a fundamental aspect of many societies. [II] Many countries are experiencing increasing levels of migration. [III] With the rise of immigration and the blending of traditions, people from various cultural backgrounds are now living side by side in cities across the globe. [IV]
One of the key advantages of cultural diversity is the richness it adds to a society. Different cultures introduce unique perspectives, foods, languages, and traditions, which help people broaden their understanding of the world. In schools and workplaces, cultural diversity fosters creativity and innovation, as individuals from different backgrounds approach problems in novel ways. However, there are also challenges associated with living in culturally diverse communities. Misunderstandings and communication barriers can arise when people are unfamiliar with each other’s customs and values. To address these issues, societies must encourage cultural sensitivity and create opportunities for cross-cultural exchange.
Governments and institutions around the world are beginning to implement policies that promote inclusion and respect for cultural differences. By celebrating diversity through events, education, and media representation, communities can create environments where people feel valued regardless of their background. Ultimately, embracing cultural diversity helps to build more peaceful and harmonious societies.
Which of the following best paraphrases the underlined sentence in paragraph 3?
Bạn Sơn tìm nghiệm \(x\in \left[ 0;2\pi \right)\) của ba phương trình sau đây:
• Phương trình (1): \(\text{cos}x=1\);
• Phương trình (2): \(\text{sin}x=\frac{1}{2}\);
• Phương trình (3): \(\text{sin}x+\text{cos}x=\frac{3}{2}\).
Mỗi phát biểu sau đây của bạn Sơn về các phương trình trên là đúng hay sai?
Mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 18 to 22.
The philosopher St. Augustine famously stated, "The world is a book, and those who do not travel read only a page." This notion aligns with the value of study-abroad programs, (18)_______ diverse cultures, languages, and perspectives. These programs are not merely about academic learning but are transformative journeys that often leave a profound impact on participants. Students describe these experiences as "rewarding" and even "life-changing," (19)________. Such programs not only enrich students academically but also prepare them to navigate a globalized world with empathy and understanding.
A significant advantage of studying abroad lies in its ability to enhance experiential learning. Unlike traditional classroom instruction, firsthand encounters—such as observing art in its original context or engaging with local communities—can deepen one's understanding of a subject. As one student observed after viewing Michelangelo's David, (20)_________. Such moments sharpen one's senses, cultivate a sensitivity to beauty and pain, and foster a deeper awareness of the interconnectedness of human experiences.
Moreover, studying abroad nurtures self-reflection, an essential aspect of personal growth. By documenting their experiences, students can analyze their values and beliefs (21)________. This reflective process not only enhances their capacity to adapt but also helps them better understand themselves and their aspirations. As educators recognize these multifaceted benefits, efforts continue to expand access to study-abroad opportunities, ensuring (22)________.
Trong một thí nghiệm giao thoa ánh sáng với khe Young. Ánh sáng đơn sắc có bước sóng λ = 0,6 μm, khoảng cách giữa hai khe a = 1 mm. Khi khoảng cách từ màn chắn chứa hai khe đến màn ảnh là D thì quan sát trên đoạn MN dài 12 mm ở màn ảnh có n vân sáng, kể cả hai vân sáng ở M và N. Tịnh tiến màn ảnh theo hướng ra xa màn chắn giữa hai khe một đoạn 50 cm thì trên đoạn MN bớt đi 2 vân sáng (tại M và N vẫn có vân sáng). Giá trị của D là
Do nhu cầu khẩu trang ngày càng cao vì dịch bệnh covid diễn biến phức tạp trong khi cung ứng không kịp đáp ứng nên giá khẩu trang trên thị trường ngày càng tăng, giao động từ 60 000 đến 100 000 đồng một hộp. Trong thông tin trên, chức năng nào của thị trường đã được thực hiện?
The phrase “do this” in the first paragraph mostly means ______.
