She Becomes Ugly if She Doesn’t Study

In her usual math exams, even if the papers are difficult, she has never experienced such a tight time.

Tang Su looked at 21 questions. This is a question that examines the combination of sequence and probability. This question has 12 points. The title is very long, nearly 200 words, and a chart. After reading the question, Tang Su began to think about the direction of the question. In the past, whether it was a series of short answer questions or probability and statistics-related answer questions, they usually appeared in the 18th or 19th question, and the difficulty of the question was average or medium. When it comes to 21 questions, the difficulty of the investigation is greatly increased.

Tang Su thought about it for almost 3 minutes, and then began to write after having thoughts.

The first question asks for the distribution column.

This question Tang Su first obtained the distribution function, and then obtained the distribution list from the distribution function.

Then Tang Su asked for the second question. The second question asked to verify the geometric sequence and write out the general term formula.

Tang Su touched her head, the difficulty of the question was really a bit difficult, she had never done such a difficult sequence of numbers before.

And this question is not a lot of calculations, but a bit different from their usual thinking angle, very novel, and a bit tricky.

Tang Su didn't care, because she didn't have too much time to think, she started writing directly. The proof question focused on steps, so she wrote every step clearly. As for the final score, it's up to the scoring.

It took 12 minutes and Tang Su finished 21 questions.

There are still 20 minutes before the end of the exam.

Tang Su immediately took a look at the 22nd question, the last answer question, this question is very short, only two lines, the first question and the second question are both proofs. Tang Su remembered that he learned this chapter of inequality in the semester of higher school, and she didn't find it difficult when she learned this chapter.

In normal exams, inequality proof questions are rarely used as the finale questions, and sometimes the knowledge of this test site does not appear in the answering part. Therefore, this test site has the finale question, which Tang Su really feels inexplicable.

After looking at it for a minute, Tang Su felt that she had no ideas, she turned over the test paper immediately.

She hasn't forgotten that she still has 16 fill-in-the-blank questions and 12 multiple-choice questions that have not been completed.

And these two questions can't be more difficult than the final one.

So Tang Su decided to solve these two questions first, and had time to do the last finale.

Tang Su first did the 16th question. This time she drew directly on the draft paper. She drew half of the court and then drew a triangle. After finishing the drawing, she determined that the knowledge point to be investigated was a combination of solving triangles and trigonometric functions.

A lot of formulas appeared in Tang Su's mind. In an instant, she had an idea, so after a simple calculation, she worked out the answer.

After completing the 16 questions, Tang Su saw that there were still 16 minutes before the end of the exam.

Tang Su did 12 more questions.

She had thoughts before and calculated the answers to the 12 questions, but the answer was not in the options, so it should be that her thoughts were wrong.

So Tang Su changed a method instead of calculating the answer directly, but tried to substitute the method of elimination. In the end, she excluded A and B. Between C and D, Tang Su used a question that she rarely uses in her daily life. Method, estimation method, through this method, Tang Su estimated that the value is 3 times the number 3, so Tang Su changed the original D to C.

As for whether it was correct or not, she didn't care, because there was no time for it.

There are 13 minutes left before the exam.

Tang Su took a minute to check the answers to the multiple-choice questions. After confirming that there were no wrong answers, she turned to the last page of the test paper and started to work on the 22nd question. Miss, she will become ugly if she doesn’t study. Latest chapter address: https://www.readwn.com/book/ 158235.htmlMiss, she will become ugly if she doesn’t study. Full text reading address: https://www.readwn.com /read/158235/Miss, she will become ugly if she doesn’t study. txt download link: https://www.readwn .com/down/158235.htmlMiss, she will become ugly if she doesn’t study. Read on: https://m .readwn.com/read/158235/For the convenience of reading next time, you can click on \"Favorites\" below Record this time (Chapter 684 races against time) reading records, next time you open the bookshelf to see! If you like "Miss, she will become ugly if she doesn’t study", please ask your friends (QQ, blog, WeChat, etc.) ) Recommend this book, thank you for your support! ! (www.readwn.com)