(3)の2行目から3行目ってどうしたらこうなるんですか

例題 190 対数の計算 [2] 思考プロセス HOME 08 ☆☆☆☆ 次の計算をせよ。 (1) log2 3 logo 25・log57・log49 16 (2) log49-log2 12 (3)(logs25+log95)(10g59+10g253) « ReAction 対数の計算は、底をそろえて1つの対数にまとめよ 公式の利用 底をそろえるためには,底の変換公式を用いる。 logeb logab = logca 底をそろえるときは,小さい底にそろえると, logaM=rlogaM を利用しやすい。 例題189 底がαである対数を 底がcである対数に直す、 log2 25 10g27 log2 16 解 (1) (与式)=10g23 10g29 log25 log249 対象の利点 210g25 10g27 410g22 =10g23. 210g2 3 log25 210g27 底が異なるから、底の麦 換公式を用いて底を2に そろえる。 loga b log.b |=210g22= 2 logea (2)(与式)= log29 ve -log212= 2log23 log24 2 (2+log23)() 底を2にそろえる。 log212 = log2(2-3) =-2 (3)(与式)= (log325 + = (logs 25+ log35/log39 log33 = log222+logz3 SE=2+log23 log39 log35 log3 25 底を3にそろえる。 =(210g (2log35+ log35 535) (10/2/3 1 loga 9=log 32 2 log35 2log35 ol = 2log 3=2 5 == -10g35・ == 2 2log35 4 〔別解) (与式)=(210g35+ log39 logo5 ) (21 5) log53 2log53+ 前の()内は底を3に、 logs 25/ 後の( )内は底を5に ろえる。 = (210gs5 + 1/2 5 logs5) (210gs3+1/231083) = logs 3 = log 5 を用いて 25 2 2 log, 5 logs 3= log33 25 -log35. 4 log35 4 もよい "oint... 底の変換公式 a>0, a ≠1,6>0,c > 0, c≠1のとき logeb loga b = loge a また,このことから, 6=1のとき 1 loga b= = logba (

①I think it difficult to finish my homework in an hour. なぜIt is difficultではないのですか？ ② This river is dangerous to swim in after the rain... 続きを読む

高1 英コミI 日本語訳の解釈のお手伝い、お願いします🙏🙏 写真より、 ⑥I know … their home. の文章について疑問があります… 「but」以下の日本語訳が (しかし、森林伐採と炭焼きは、永久に彼らの故郷を変えてしまうかもしれません。) となるのです... 続きを読む

Lesson 3 We Can Make a Difference Q Listening 本文の音声を聞いて、要点を捉えてみましょう。 1. Lilanda が指摘している問題はどれですか. a. ゴミの増加 b. 森林伐採 2. Lilandaの職業は何ですか. c. 水のむだ使い a. 農家 b. 歌手 c. *i Part WAL Reading 本文を読んで、上の答えを見直してみましょう。 太字の単語や点線の熟語 Lilanda, Zambia 別冊の「語彙ノート」 p. 7 Part 3 ①When I visited the countryside of Zambia / as a child, / my family and I/ would return / with many fresh fruits and vegetables. // ②Everything was plentiful. // 3 However, / because of lack of rainfall, there's nothing to harvest in the village now. // People's lives depend on charcoal burning. // They cut down trees, / burn charcoal, and sell it to buy some food.// ⑥I know the difficulties of surviving in this land, but deforestation and charcoal burning could permanently change their home. // Deforestation 永久に definitely leads to climate change. // As a singer, / I convey messages about preventing climate change / through singing songs. // I will continue using my voice / to tell more people about the need/ for reforestation. //(113 words) 1 2 30

かっこに入る並び順を教えて欲しいです。使わない選択肢が 2 つあります。よろしくお願いします。🙏

fine enough to block them. If cycle paths were located away from roads, the health risks to cyclists would be greatly reduced. At just 10 metres from traffic, levels of pollution drop by 90%. Newby said: "While they are exercising, ). We need to locate cycle lanes away from major roads."

書き換える問題です。かっこに何が入りますか？

It was lucky for us to catch a taxi right away. ), we ( ) a taxi right away.

第1文の文構造と訳、第2文のevenの意味が知りたいです。解説が手元にないので教えてください。

nine. 2 When it came to deciding on where to study, Johnson, from Sheffield, says she picked Durham University because it offered a year abroad in Sweden, the "home of orienteering." She even met her husband there at an orienteering training camp. "We've both competed in world

この写真の英語をどう読むのかをカタカナで送ってくれませんか？

I had a host brother, Kevin. He was really interested in Japan and asked me many questions. Talking with him was fun. However, it was difficult to answer some questions. For example, he said, "Why do you say "Tadaima' when you get home? Why do you take off your shoes when you enter a house?" I couldn't explain the reasons. After I talked with him, I felt like learning about my own country. In the end, staying with a host family was a great experience. Sometimes we couldn't understand each other. However, I kept trying to speak in English, and they listened to me carefully. I » want to visit them again in the near future. [115 words] 5 10

高二英語です。practice 2の4番まで意味が全く分からないのですが、これは答えを写してしまいました。なぜこうなるのか詳しく教えて欲しいです🙇‍♀️

Practice 2 (例)を参考に、指示に従って書きかえなさい. 受け身/ 「S+V+01+02」 「S+V+0+C」 の受け身 Part 1.2 (1) My sister cooks breakfast every Sunday. Write about breakfast. ← Breakfast is cooked by my sister every Sunday. (1) The ancient Greeks built the Parthenon. Write about the Parthenon. ← The Parthenon was built by the ancient Greeks. (2) Noah showed his mother an article on endangered animals. Write about Noah's mother. • Noah's mother was shown an artide on endangered animal by Noah. -> (3) Nanami's classmates call her Nana. Write about Nanami. • Nanami is called Nana by her classmates. ->>> (4) Mr. Sakuragi gave his students a lot of homework. Write about homework. -> A lot of homework was given to Mr. Sakung i's students by him...

英検の英作文で質問ですが、such asの後ろtheyのtって大文字ですか小文字ですか？

く読んでから答え When people look for a job, some choose a workplace that is close to where they live, while others move to a new town or city in Japan. There are other choices, too. Some of them decide to go to other countries to work. What are the reasons for this? They can have experiences that they cannot have in their own countries while working abroad. Also, they can learn a local language by using it not only at work but also at other times. This can help their future career as well. On the other hand, people have to face issues with differences in customs at work. It can take a long time to get used to the new work environment if things are very different from their own countries. Also, people cannot easily visit their family and friends back home. This can cause them to feel lonely. ①These days, some of people verse. ecially thers media anytime, earn new ity. me young themselves ch personal a dangerous decide to other go countries to work. 質 大文字?OKか * It has benefits, such as They can have edia.

答えあっていますでしょうか🥲🥲

14. (At the office) A Martin? B Yes? A Close the door, would you? I'm freezing. B( ) 1 What for? 15. Man Excuse me. 2 If I can. 3 No wonder. 4 Sure. I'm sorry.) Woman: Yes, sir. How can I help you? Man I'd like another glass of water, please. Woman ( ), sir. I'll bring one right away. 1 Certainly 2 Definitely 16. A Do you mind if I go first? ava B ( ) I'm in no hurry. A Thanks, I really appreciate it. T I wish you could. 3 Never mind. 17. A Shall we go out for dinner? 3 Perhaps i sve 'so I bodeton D Probably (*+****) lle i ok 2 Go ahead. I can't wait. din yno.go < 大阪経済法科大) gring o 3 Not at all. 4 See you tomorrow. 〈駒澤大〉 18. Tom Can you recommend a good restaurant in Shibuya? B( ( By all means. 2 Me too. ☐ James ( ) French Garden? They serve very nice organic vegetable dishes. Tom Sounds nice! I'll have lunch there with my friends. Could you tell me the exact exfood amoz food vendit sill of baband m'lASI place? ①Why don't you try ③ Why should you try 19. (Weekend plans) 2 Why not I'm to try ④What about not trying() Mike What will you do this weekend, Kana? Kana I don't know. What will the weather be like? *Mike: Well, the forecast says it's going to be sunny. (1) amo 1 blue Kana No thanks! I don't want to get another sunburn. 1 Who cares? 3 Why don't we go to the beach? ☐ 20. A Do you like action movies? B Yes, I love them. A: ( ) B That would be great! 〈盛岡大〉 2 Which film do you want to watch? ④When does summer start in your country? Are you seeing one together this weekend? 2 Will we be seeing one together this weekend? 3 How about seeing one together this weekend? ④What if we're seeing one together this weekend? 〈龍谷大〉