数学IIの複素数と方程式の問題です 解き方と答えを教えていただきたいです

81 与えられた2数を解とする 2次方程式 る。 3. (1)2つの解が2-3と2+3iであるような2次方程式の1つはメー ア x+ イウ = 0 であ の1つは x+ I (2) 2次方程式 x2-2x-5=0 の2つの解をα β とするとき, α+βとαβを解にもつ2次方程式 x- オカ =0 である。

問4の（2）についてです 私は（2）に「先生を思い出す」と言う意味でウを選んだのですが、答えはアでした。なぜウだと不適なのか教えていただきたいです🙇🏻‍♀️😭

(配点 23) Everyone wants to do well on tests. Here is some advice from successful students on how to do well on tests. Listen to the teacher from the first day of class for hints about what is important. For example, the teacher will emphasize the important information by repeating it or telling you it is important. When you look over your textbook and notes again, you should already know what is important. After each lecture, look over your notes again. Come to class ready to ask questions about what you don't understand. C Look at the visual aids the teacher uses. For example, if the teacher asks you to look at a diagram or graph in your textbook, make sure you understand why that diagram or graph is important. There may be a question on the test that asks about that diagram. Study for an essay exam. Students who prepare for essay exams do better on all types of exams. Students need to know more information for essay exams than for true/false or short-answer exams. There are no hints on the exam itself, so students must learn more for essay exams. To prepare for an essay exam, always read the *material twice before you start taking notes. When you read the material the first time, it may seem difficult. When you read the material the second time, it will seem easier. This is similar to when you (1) have to find the way to a friend's house for the first time. The second time you go to your friend's house, it's easier because you know the way. It may even seem shorter because you don't have to slow down as much to check street names or landmarks. The same is true with the material you read. The second time you will already know the words and ideas. In China, they lp to stop de After you've read the material twice, take notes. At this point, you'll find that you know some of the material and can focus on what is most important. Don't ignore *footnotes in your reading. Sometimes teachers think the information in a footnote is important and will ask a question about it. Write down the important information in is in the years t your notes. After you take notes, go back and add your opinions to them. Write down For food in the desert. the ideas that you agree with and the ideas that you disagree with. People remember ants ex large number

共通する単語は何か分からないです。

(i) to break down food in the body to use as energy: I had a hard time (d_)ing the spicy food. (ii) a brief account or summary: This program gives you a (d) of today's main news stories at the end.

1番最後の式の、黒丸で囲った所がなんで、こうなるのかよく分からないので、教えて欲しいです。

例 13 n (1)和Σ3k-1 を求める。 k=1 n Σ3-1=1+3+3²+......+3″−1 500 A 10358 k=1 これは,初項1 公比3の等比数列の初項から第n項までの 10 和であるから n 3k-1 3n-1 1 (3-1) k=1 3-1 2

英検2級 英作文 添削お願いします😿 お題は年賀状という週間は良いと思うか？です。

car communicate with In my opinion, it is a good habit to send pengajo. I have two reasons. First! We can built a nice friendship. Even if we feel grateful, it is difficult to tell it directly. But nengajo will solve this problem. Second, we friends who live far away from. We don't have to go far away Can Save a lot of time each other. It's a mutual advantage. Therefore, I want to protect this great tradition. 1 so, we

これにS(主語),V(動詞)をつけてくれませんか😭😭

16 D 15 2 of 900 woyob woH Moli linakalipid or ou Some parents do not like the idea of But in fact, pets may be good for Many children want to have a pet. having a dog or a cat in the house. children. A pet is something to play with. So keeping a pet can be especially important if there is only one child in the family. Also, children can learn a lot of things from a pet. They can learn about animals and the natural world. Children are also able to learn about taking care of a living creature. They have to learn to look after their pets in their daily life. This is an important experience for all children. stil ylish Cats and dogs are both popular pets. To tell the truth, I think cats are better for several reasons. First, cats are cleaner than dogs. They clean and they will not make the house dirty. Second, cats are safer. I junde bey stay very 10 Dogs sometimes bite people, but cats almost never do. And finally, cats are easier een to take care of. You do not have to spend much time with a cat, because many cats like to be left alone. What do you think? es/Tokyo/been/many/to/have). TERES

この問題は、最後sheではダメですか？ 教えてください。

(88) アンナは彼女よりも美しくなるだろう。 Anna will be ( ) beautiful ( )(). more than she her

英語の疑問詞を使った慣用表現の質問です。 “君はニューヨークに何回か行っているね。 どんな感じの都市ですか？” という日本文で、答えが "You have been to New York several times. What is it like.” になっているんです... 続きを読む

まるで囲んだ二つの記号の違いと読み方を教えてください

8 準備 | 集合 B 部分集合 2つの集合 3 5 P={1, 2, 4}, Q= {1,2,3,4,5} では,Pのどの要素もQの要素になっている。 P 2 560 一般に,2つの集合A, B において, A のどの要素 もBの要素であるとき, すなわち B xEA ならば xEB A が成り立つときはBの部分集合であるといい 1 記号で ACB と表す。 10 このとき,AはBに含まれる, またはBはAを含むという。 上の集合 P,Qについて, PはQに含まれ, PCQ と表される。

間違っているところがあったら教えてください🙇‍♀️

Despite (3) Please remember ( be waked 2 In spite of③Although ④But for ) me up at 7 o'clock tomorrow so I can get to school on time. 2 to wake 3 waking (4) Take this coat to the laundry. It's so dirty that it ( 1 needs to wash 2 has it cleaned 4 woke 3 needs washing ①wants cleaned (5) We are likely to have a warm winter this year for the first time ( ①in ten years ③ past ten years (6) ( 2 over ten years' period ①ten years ago ) asked Michael about the matter, he wouldn't say a word. ①Anyone 2 Even if 3 However ) me go out with Tom. 2 allow 3 prevent (7) My father would not ( 1 let (8) But ( ①against ). (東京経済大) (玉川大) (立教大) ④Whoever (摂南大) ④ resist ) the rain and cold wind, we would have had a nice holiday. 2 from 3 of ④ for (西南学院大) (昭和女子大) (9) Miki and her family ( ) out of town. I have called several times, but there is no answer. I could go (10) ( 1 Either 2 must be 3 should go ) it is fine or not, the football game will take place. 2 Neither 3 Though (11) It's ( ) that I'd like to take my dog for a long walk. would be (南山大) ④Whether (獨協医大) ①such a beautiful day 2 a so beautiful day 3 such beautiful a day a beautiful day so (高知大 (12)( ) will be elected as the next chairperson? ①Do you think who 2 Do you think whom 3 Who do you think ④Whom do you think (国士 1 a day (14) To read a foreign language is ( 1 few 2 one 2 at a day 3 other (13) Here's your medicine. Take one capsule three times ( ) thing, to speak it is quite another. 5 this ④some 3 by a day ), after each meal. ④for a day (東北学