Đạo hàm của hàm số \(y=\frac{1}{2}\sin 2x+\cos x\) tại \({{x}_{0}}=\frac{\pi }{2}\) bằng

Khảo sát, sưu tầm, tìm kiếm và tập hợp những thông tin liên quan đến đối tượng học tập, nghiên cứu, tìm hiểu lịch sử… là quá trình của việc

Chủ thể sản xuất cần có trách nhiệm gì sau đây?

Read the following passage about the Science in Service of Humanity and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

Science has come out of its shell in laboratories to become a powerful force for human advancement. Modern scientific endeavors increasingly focus on addressing real-world challenges affecting communities globally. From developing vaccines that save millions to creating technologies connecting people across continents, science serves humanity in countless ways. This shift represents a fundamental evolution in how we perceive scientific progress—not merely academic pursuit but a practical tool for improving lives and solving pressing problems.

[I] Medical breakthroughs exemplify how science directly benefits humanity. [II] For instance, gene therapy offers hope for those with inherited conditions, while artificial intelligence helps diagnose diseases earlier and more accurately. [III] These advancements didn't happen overnight; scientists had to burn the midnight oil for years before achieving success. [IV] Their perseverance demonstrates that when science targets humanitarian goals, results can transform society profoundly.

Environmental science has emerged as another crucial domain where laboratory work translates into human welfare. Climate scientists provide data informing policy decisions affecting billions. Conservation biologists develop strategies to protect biodiversity, ensuring future generations benefit from natural resources. Agricultural researchers create drought-resistant crops helping communities withstand changing climate conditions. Despite these contributions, environmental science faces challenges including funding limitations, political resistance, and urgency of addressing accelerating climate change. Nevertheless, dedicated scientists continue their work, recognizing environmental health directly impacts human wellbeing.

The future of science in service of humanity looks increasingly collaborative and inclusive. Modern approaches incorporate diverse perspectives, including indigenous knowledge and community participation. Citizen science projects engage non-professionals in data collection, democratizing the scientific process. Open-access publishing makes research findings available to anyone with internet access, not just wealthy institutions. These developments suggest science's greatest potential lies in becoming more accessible and responsive to human needs. As we face complex global challenges, from pandemics to climate change, science serving humanity offers our best hope for a sustainable future.

Which of the following best summarises the passage?

Read thefollowing passage and mark the letter A, B, C or D on your answer sheet to indicate the option that bestfits each of the numbered blanksfrom 18 to 22.

Peer pressure, (18) ________, can have both positive and negative effects. For instance, when surrounded by motivated peers, (19) ________. Positive peer pressure can be a great motivator, as peers who excel in academics or extracurricular activities can inspire others to follow suit. However, peer pressure can also lead to negative outcomes. The influence of friends who engage in risky behaviors, such as skipping school or using substances, can encourage others to make poor decisions. Studies have shown that teenagers are more likely to take risks in the presence of their peers because they feel more confident when surrounded by others.

While peer pressure is often associated with negative behavior,  (20) ________. For example, students may be encouraged to excel in their studies or participate in volunteer activities due to the positive influence of their peers. However, it is important to develop strong decision-making skills and self-confidence (21) ________.

Parents and educators play a key role in helping young people navigate peer pressure. By teaching young people how to recognize both positive and negative peer pressure, and how to make independent, thoughtful decisions, parents and educators can help ensure that students thrive in a healthy, supportive environment. Encouraging open communication, providing advice on how to stay true to one's values, and helping students develop self-confidence are all crucial aspects of this process.

In conclusion, peer pressure is a powerful influence. (22) ________, teenagers can succeed and grow in a positive social environment.

Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questionsfrom 31 to 40.

[I] Social media has become a dominant force in modern communication, offering a range of benefits and challenges. [II] It has revolutionized the way people interact, share information, and even form relationships. [III] While these platforms offer opportunities for connection and expression, they also have their drawbacks. [IV] For instance, excessive use of social media has been linked to a range of negative effects, including mental health issues, social isolation, and decreased productivity. [V] However, when used responsibly, social media can also offer a variety of positive outcomes, such as the ability to stay connected with loved ones, network professionally, and access valuable information and resources.

One of the major benefits of social media is its ability to keep people connected. For example, individuals who live far apart can maintain close relationships through regular communication on these platforms. Social media also facilitates professional networking, allowing users to connect with potential employers or clients, and enabling companies to promote their products and services to a global audience. Additionally, platforms like Facebook, Twitter, and Instagram provide a space for people to share ideas, opinions, and creative work, fostering a sense of community and collaboration.

Despite these advantages, there are serious concerns about the negative impact of social media, particularly on mental health. Studies have shown that excessive social media use can contribute to feelings of anxiety, depression, and loneliness. This is often attributed to the unrealistic portrayals of life that are commonly shared on these platforms, leading to comparisons that can make individuals feel inadequate or left out. Furthermore, constant exposure to negative news or online bullying can exacerbate these feelings and contribute to long-term psychological stress.

Another issue with social media is its potential to distract people from their daily responsibilities. With notifications constantly popping up and endless streams of content to scroll through, individuals may find it difficult to focus on tasks such as work, school, or personal obligations. This can result in decreased productivity and a lack of attention to important matters.

Ultimately, the impact of social media depends on how it is used. If individuals are mindful of their usage patterns and take steps to limit their time on these platforms, they can enjoy the benefits of staying connected and informed without the negative consequences. Parents, educators, and mental health professionals can also play a role in helping young people develop healthy habits and manage their social media use effectively.

Where in paragraph 1 does the following sentence best fit?

"Social media has transformed how individuals communicate and engage with each other."

Hình ảnh “lấm tấm vàng” trong câu thơ “Đôi mái nhà tranh lấm tấm vàng” là màu vàng của?

Một con lắc đơn gồm quả cầu nhỏ khối lượng m được treo vào một đầu sợi dây mềm, nhẹ, không dãn, dài 81cm. Con lắc dao động điều hòa tại nơi có gia tốc trọng trường g. Lấy g = π² (m/s²). Chu kỳ dao động của con lắc là:

Tôn giáo được độc tôn ở thế kỷ XIX là

Gió đất có cường độ mạnh nhất vào lúc nào?

Ý nào không phải là hạn chế của nguồn lao động nước ta hiện nay?

Tài chính liên quan đến vấn đề nào?

Cho phản ứng nhiệt hạch có phương trình: \(_1^2{\rm{D}} + _Z^4{\rm{X}} \to _2^4{\rm{He}} + _0^1{\rm{n}}.\) Hạt nhân \(_Z^1{\rm{X}}\) có điện tích là

Phương án nào sau đây là các giá trị dùng để biểu diễn dãy nhị phân?

Hành vi nào sau đây vi phạm pháp luật trong sử dụng Tin học?

Cơ quan quyền lực nhà nước ở địa phương, đại diện cho ý chí, nguyện vọng và quyền làm chủ của nhân dân được gọi là gì?

Cho hình chóp \(S. A B C D\) có đáy \(A B C D\) là hình chữ nhật, \(A B=2 a, A D=a\). Mặt bên \((S A B)\) là tam giác đều và nằm trong mặt phẳng vuông góc với đáy.

Tính thể tích khối chóp \(S. A B C D\).

Các đám mây gây hiện tượng sấm sét tạo nên bởi những hạt nước nhỏ li ti mang điện tích. Một phép đo thực nghiệm cho thấy một giọt nước có đường kính 50 μm, mang một lượng điện tích âm là -3,33.10^-17 C. Hãy cho biết điện tích âm của giọt nước trên tương đương với điện tích âm của bao nhiêu electron?

Lớp 10A có \(21\) em thích học Toán, \(19\) em thích học Văn và có \(18\) em thích học tiếng Anh. Trong số đó có \(9\) em thích học cả Toán lẫn Văn, \(7\) em thích học cả Văn lẫn tiếng Anh, \(6\) em thích học cả Toán lẫn tiếng Anh và có \(4\) em thích học cả ba môn Toán, Văn, Anh, không có em nào không thích một trong ba môn học trên. Trong lớp 10A có bao nhiêu học sinh?