何を言っているのかイマイチ分からなかったので有識者の方ご教示お願いしたいです🙏🙏🙏

分母0だから分子→0ってなんで? 分母0だから分子→0ってなんで? 関数の極限定番の問題に、下のような例題がある。 分母→0にも関わらず, 無限大に 発散せず,一定値に収束しているから, ｢分子→0が必要条件」 的な解答が目立つが、 典型的な生徒の反応は 「なんで?」 である。 要するに、教科書の標準的な記述では、生徒が納得しないのだ。 例題 次の等式が成り立つように、 定数a, bの値を定めよ。 a√x + b x-1 lim 3-1 lim a√x+b lim が成り立つとする。 lim(x-1)=0 であるから lim (4√x+b) = 0 すなわち l 逆に、このとき =2 a√x+b x-1 lim (a√x+b)=lim. ー1 すなわち a+b=0 積の極限とみる ただ, 教科書の記述をよく見てみると, そう考えられる理由はきちんと記述されている｡ その考え方すらショートカットして、 結果だけを用いるから生徒が納得しないのだ。 よって,次のように、 理由も含めて記述してしまうのが得策である。 fl lim =2 =2 a√x+b x-1 a√x+b x-1 ① が成り立つとすると ゆえに ① a+b=0 =lim (x-1)=2.0=0 b=-a (√x-1)(√x+1) 以下略 Pl (x-1)(√x+1) であるから a=4のとき ① が成り立ち, ② からぁ=-4 a =//= 圈 a=4,b=-4 a √x+1 =lim 必要条件であることの方が重要 上の解答では、 ② が ① であるための必要条件にすぎないことの方が重要である。 ぜひ､試してみてほしい。 =2

英語の和訳をお願いします。 第1段落と第2段落がうまく訳せません。 特に第1段落のThree of them 以下や、第2段落の第1文のManga 〜 in Japanese.やIt describes以下です。 It describesのItもなにを指しているか混乱してま... 続きを読む

回 海外で発行されている日本のガイドブックに、漫画とアニメの記事が掲載されています。 記事を読んで、あとの問いに答えなさい。 People around the world now know and love Japanese anime. Some characters are familiar to people who do not usually read manga or watch anime. One of the reasons for this success is the adjustments that were made for viewers overseas Three of them involve titles, characters, and content. 2 Manga and anime titles are, of course, originally in Japanese. Some, like this does not work with all titles. For example, Knights of the Zodiac is originally Seinto Seiya in Japanese. It describes just the main character, but in English, the title was changed to something that relates to the whole story. This made it more attractive to viewers in foreign countries. Characters' names are often changed in manga and anime that are mainly for children. It is hard for children to remember unfamiliar names. With familiar names, children can focus on the story. For example, the character Satoshi in Pokemon becomes Ash in English. The name Ash uses three letters from S-a-t-o s-h-i. Japanese customs are sometimes adjusted for non-Japanese viewers. The adjustments can be small or large. Consider this example of a small adjustment. In anime in Japan, characters eat onigiri. In Western versions, they eat cookies. In manga, they don't change the pictures. Instead they add short explanations. This way, foreign readers can understand Japanese customs and behavior. A large adjustment might be a change in the setting. Consider Kyojin no Hoshi, an anime from the 1970s. In it, the main character Hyuma trains very hard and becomes a professional baseball player. In the Indian version, its main character plays cricket, a popular team sport in India. In short, perhaps anime became more popular because of these adjustments. The language and customs were adapted a little to fit each culture. Think about your favorite manga or anime. The original is probably different.

間違っているところを解説してほしいです

2. ¾. 8 4 9 (A) Needless of oud (B) Beyond Views ( 3. I will ask him to My old smartphone's battery (A) takes avab wal (B) continues w insmeganem (1) only a few hours. (C) follows aeria((D) lastsoves enT SI moitoles (3) maibibilog (8) insmedada (A) the bad situation, project managers haven't shown any leadership. (C) Despite Jaco (D) Careless of W vlersonient vlevitammetla (8) this 10,000 yen bill so we can buy a bottle of water at the vending machine. (A) charge (B) break He is a naturally (A) gifted We need to decision. (A)) put 7. The government (A) established vidguorodi How ((A) long 6. The timetable says the bus runs (A)) after (B) about (B) provided (B) go (B)) raised (C) slice singer. I will have the washing machine (A) repair (B) repairing (C) wanted all possibilities into account when making a final 10. The application form has two sides, so (A) examine (B) check (C) make (C) every (D) cut (D) tried half hour. the consumption tax to 10 percent last year. (C) added (D) constructed can we park our motorbike here for free? (B) much (D) far (C) many (C) to repair take (C) remember (D) between by next week. ((D) repaired to fill in both. (D) recall

lim(x→a) f(x)/x－aの値が存在するとき、f(a)＝0になると書いてあったのですが、言いたいことは分かるもののなんか厳密じゃなくないですか？詳しい説明できる方いらしたらぜひお願いしたいです！

1 極限・微分係数の定義 100%E (ア) 3次関数f(x) = ar3+bx2 +cx+dが, lim b,c, dの値は,α= b f(x) x-1x²-1 C= =4. lim f(x) x1x2-1 d= -=2を満たすとき,定数a, である. (同志社大 理系)

理科ではどの単元が不得意ですか??もしよければ勉強法など教えます!!

理科ではどの単元が不得意ですか??もしよければ勉強法など教えます!!

理科ではどの単元が不得意ですか??もしよければ勉強法など教えます!!

解答を教えてください🙇

LESSON 9 Quome: Bryor 1 Choose the best answer to fill in the blanks. (1) (1) When I was a would (2) You've got ( 1 a few eggs child, I ( 2 should ) on your tie. 2 an egg ) often play baseball with my friends. 4 might 3 must (3) He has such a soft voice that I can ( hardly ℗ hard (4) She cannot speak English, ( nor better 2 nor less (5) The crowd watched the firefighter ( climbing 2 climbed (7) His arguments forced them ( 1 admit to admit Did you have fried eggs for breakfast? dime 3some egg 4 some eggs (9) His English essay was ( ). 1 superior than Carl's 3 superior to Carl's (11) He told me that he ( 1 had never been was never (12) Willy was surprised ( hear (13) The foreigner was used ( 1 handle ) hear him. 3 already ) French. (6) Let's stay home and watch a movie (Y) it's sunny tomorrow. 1 although as soon as 3 even if 4 when 2 to be heard 3 much better 2 handling 1) the ladder. 3 to climb ) he was right. 3 admitted (10) We then moved to Paris, () we lived for six years. 3 where 1 that 2 which ) to America before. ) the news. 4 admitting (8) It is not that I dislike my new job (___) that the working hours are too long. 1 so 2 with 3 for but (神戸学院 4 yet superior for Carl's 4 superior as Carl's 4 to have climbed much less 2 never comes 4 will never come 3 by hearing ) a pair of chopsticks. 3 to handle FERONE 4 what (センター 4 to hear (黒 to handling 2 (1 (2 (創 (名塩 RETESAHONE ( (学) (北海道 GR

Children should be taught to keep their rooms clean. ｢子供たちは自分たちの部屋を綺麗にしておくように教えられるべきだ。｣ この分は何文型なのでしょうか。一応第2文型・第5文型のページにあった問題なのですが、イマイチよく... 続きを読む

x³+x²－x+1を因数分解できますか？