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• Đạo hàm của hàm số y = log2x là:

Câu 1:

Đạo hàm của hàm số y = log2x là:

A.

B.

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C.

D.

Những câu hỏi này đến từ bài kiểm tra này. Bạn có muốn thực hiện bài kiểm tra thử không?

Trắc nghiệm Toán 12 Phần Giải tích Chương 2 hàm số mũ, lôgarit 20 phút - Đề số 9

• 20 phút
• 10 câu hỏi

Làm bài kiểm tra

Một số câu hỏi từ cùng một bài kiểm tra

• Tập nghiệm của bất phương trình 32.4x - 18.2x + 1 < 0 là:

• Tập nghiệm của bất phương trình 4x.33 > 3x.43 là:

• Hệ phương trình có nghiệm là:

• Mệnh đề nào sau đây là mệnh đề đúng?

• Ta có bằng:

• Số nghiệm của phương trình là:

• Kết quả phép tính bằng:

• Hàm số có tập xác định là:

• Số nguyên dương x nào thoả mãn (log3x)(logx5) = log35 ?

• Đạo hàm của hàm số y = log2x là:

Một số câu hỏi khác bạn có thể quan tâm

• Read the following passage and mark the letter A, B, C, or D on your answer sheet to choose the word or phrase that best fits each of the numbered blanks from 6 to 10.

  Since the time of Nostradamus, meteorologists have been trying to decipher the mystery of climatic changes. Their objective has been to be able to precisely (6)______ the weather for the days to come. In the past, meteorologists looked skywards to find hints in the clouds. At present, their eyes are directed at the spots(7)______the most intriguing climatic transformations come about, namely, the ultimate depths of the oceans where swirls, whirlpools and waves generate the patterns for the future weather.

  The most efficient way of (8)_____ hold of the ever changing map of the swirling currents circulating their heat around the planet is from space. Weather satellites equipped (9)_____complicated instruments examine the surface and the bottom of the oceans and determine the exact height of water. The impressive advantage offered by satellite scanning is that measurements can be (10)_____even in the most inaccessible parts of the oceans and can provide daily pictures of the water surface together with the calculated wave height and wind speed.

  Weather satellites equipped (9)_____complicated instruments examine the surface and the bottom of the oceans and determine the exact height of water.

• Tính chất hóa học đặc trưng của kim loại là

• Cho các chất sắp theo chiều tăng phân tử khối CH3NH2, C2H5NH2, CH3CH2CH2NH2. Nhận xét nào sau đây đúng?

• Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions

• 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.

  Technology has utterly transformed our ability to communicate with each other. Linking to each other both literally and figuratively, many of us connect through cell phones, email, instant messaging, blogs, and networking web sites, yet we may be less connected to each other than we think.

  According to a study, Americans are becoming increasingly socially isolated. The study reveals, for example, that one quarter of Americans say that they have no one to discuss important personal issues with, and that the number of close friends that American have has dropped from three to two. Meanwhile, the Boston Globe reports that this spreading isolation is experienced more sharply among those with less education, people of color, and older Americans. Unsurprisingly, those who are young, white, and well educated tend to have stronger social networks.

  From my own experience I have to say that I’ve never felt more connected, thanks to a web of friends, family, and colleagues. One of my closest friends is someone I met through an online discussion group who lives hundreds of miles away from me. We have met face-to-face only twice, yet our regular electronic correspondence and cell phone calls sustain our close friendship. And, speaking of blogging, my blog has introduced me to people I would never have met otherwise and has led to enduring and important friendships.

  On the other hand, I recently saw a scene unfold that proved to me how deeply disconnected we as Americans have become. I had just wrapped up a presentation on mediation at a family therapy center. As I was leaving, I noticed a mother and her teenage son who had just completed their session with their family therapist. After making their next appointment, they both took out their cell phones, placed calls, and began loud conversations with whoever was on the other end. I walked out behind them to the parking lot to my car. They both jumped into their SUV, and, as I saw them drive off, they were still talking on their cell phones. But, alas, not to each other.

  What does the passage lead you to believe?

• Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions