下の練習５の⑴を上の例題を参考に解説していただき たいです🙏答えはえんぴつで書いてあるものです

4 漸化式の応用 応用 平面上にn本の直線があり, どの2本も平行でなく,どの3本 例題 も同一の点を通らないものとする。 これらn本の直線の交点の 個数を an とするとき, 次の問いに答えよ。 (1) an+1 を an で表せ。 Tips n本の直線に, 新しく直線を引いたときの交点の個数の変化を考える。 解 (1) n本の直線が αn個の点で交 わっているとき, (n+1) 本目 の直線を引く。 (n+1) 本の直線のうち,どの 2本の直線も平行ではないので 直線1は,もとのn本のすべ ての直線と交わる。 また,どの3本の直線も同一の点を通らないから, (n+1) 本目の直線を引くことで,交点はn個増える。 よって an+1=an+n かけられた (2) 数列 {an} の階差数列を {bn} とすると,(1)より bn=an+1-an=n また, α = 0 であるから, n ≧2のとき (2) an を求めよ。 n-1 an=a₁ + b₂=k=n(n-1) k=1 n-1 k=1 この式は,n=1のときも成り立つ。 よって an=1/23n(n-1) K n本 練習 5 応用例題1において, n本の直線によって分けられた平面の部分の 個数を an とするとき, 次の問いに答えよ。 (1)an+1 を an で表せ。 anti = Anth ti (2) an を求めよ。 [(n²+ 4 + 2)

英検2級英作文訂正お願いします！‪( . .)"‬

Some people say that Japanese high schools students should go on trips abroad. What do you think about that?

(2.5.7)の訳し方がわかりません。 2 私たちの少ない時間を測定することに成功し宇宙の偉大な神秘を思い出させられた。 5 時間と変化は漏れた（リンクは結ぶとも訳せるのですか？） 7 私たちはある日、暗と光とそれぞれ名付けた としか訳せません

2 次の英文を読んで、以下の問いに答えなさい。 If you can read a clock, you can know the time of day. But (n)(knows/time itself / what is / no one / .) We cannot see it. We cannot touch it. We cannot hear it. We Ense tiniest parts of time, time remains one of the great mysteries of the universe. know it only by the way we mark its passing. (2)For all our success in measuring the 測定 One way of thinking about time is to imagine a World without time. There could be no movement, because time and movement cannot (3)(separate). A world without time could exist only (4)as long as there were no changes. (5)For time and change are linked. When something changes, you know time has passed. In the real world, changes never stop. Some changes happen only once in a while, like an eclipse of the moon. (A) 日 happen repeatedly, like the rising and setting of the Sun. People have always noted natural events that repeat themselves. When people began to count some events, they began to measure time. 彼ら自身 In early human history, the only changes that seemed (6)(repeat) themselves evenly were the movements of objects in the sky. The most easily seen result of these movements was the difference (B) light and darkness. The sun rose in the eastern sky, producing (C). It moved overhead and sank in the

これの意味が分からないので、簡単に解説してほしいです‼︎

zips! [1] の発音には2種類あります。 [1] が単語の語頭にある場合 (light, lemon) や [1] の次に母音が来る場合 (alive, selling) は、はっきりと発音されます。 一方,[1] が語 尾に来る場合 (all, shall, normal) や [1] の次に子音が来る場合 (wolf, bulb, felt) は, 「ウ」や 「オ」に近いくぐもった発音になります。 ただし、語尾が1で終わって いても、次に母音で始まる語が来る時は、 母音とつながってはっきりした音になり ます。 [例] 1. This is a little difficult. 2. He didn't tell me so. 3. He didn't tell it to me. 18 NO A 16

What are we experience on overseas trips？ の簡単な答え方教えてください！！ できたら何かを食べることが出来る みたいな感じの答え方がいいです‼️

至急お願いします。

2 基本文・重要表現の確認 次の日本語に合うように、 (1) 私はその結果に驚かされました。 I was (2) テニスをすることは私を幸せにします。 Playing tennis me happy. (3) 彼女はブレーしているとき, ほほえみ続けたいと思っています。 She wants to when she plays. に適切な語を入れて英文を完成しましょう。 the result, (4) 彼女は世界選手権で何度も勝ったことがあります。 She many world championships.

訳教えてください。

編成する ②~を整理整頓する 22 * You need to organize your work more carefully. 麻生店 OVELA HIPS 1.4

willの訳が「～できるだろう」と可能の意味を含んでいるのですがよいのでしょうか？よろしくお願い致します🙇

5 If we view each person we meet in the course of our dail life as a potential teacher, someone we can learn somethin from, we will naturally form new, rewarding friendships.

英語のリーディングの問題を、S V O C 、（） 、→ などを書いていつも訳しています ՞ ՞ 文の構造をしっかり理解しようと思ってしているのですが、テストでだと時間的にやめた方が良いですか ?? 慣れてきたのか最初よりは書き込みも早くなったとは感じますが … ... 続きを読む

a a high school student in Japan> He is from Australia. He finds two of his friends, Hikari a (+"=> in their classroom and talks to them. of our S : Hi, Hikari, Takuma. What are you looking at? : Hi, John. We are looking at *results of a *survey about the school trip) O ↑ In the survey, 243 first-grade students(at our high school were asked the question: "Where you want to go on the school trip?" Look at this *graph. V : Oh, the most popular place is Okinawa. I understand that because we can swim in C beautiful sea and its culture is very interesting. Have you ever been to Okinawa? (1127 くどこ : Yes. I went there on an *elementary school trip and a family trip last year. My best me O s in Okinawa is *snorkeling in the sea. There were a lot of beautiful fish in the water, and S V excited when I saw them. I had a really good time during each of the trips. LEES くりつ) : I went there on the school trip when I was a second-grade student (at junior high s 12x During the trip, we didn't stay at a hotel. <+1>> : Oh, really? Where did you stay then? Sone houses くどこう : We visited some houses and stayed there. I stayed at Mr. Higa's house. He and his Cat=r=" were very kind and did many things for me. For example, they took me to some V places and made me some traditional dishes. I also had an experience (of taking care サトウキビ cane in their field. I had no chance to see sugar cane before coming to that field) S very interesting. Staying with Mr. Higa and his family is my best memory in Okinaw : Wow, you both enjoyed staying in Okinawa. I have become more interested in visi 動名詞 ↑ listening to your stories. 化現在完了形 S : I'm happy about that. If you visit Okinawa, you will like it very much, too. : Well, I've heard that a lot of students go to Kyoto or Nara on the school trip. But (Y" => S SV shows that only fifty students want to go there. I'm a little surprised about that. And V is more popular than Kyoto and Nara 最上 S : Look! Some foreign countries were chosen, too. And your country is the most them all) gift no : I'm happy about that. *Hawaii is also popular, right? 自然と同じくらい SV S V : Yes, it's as popular as Nara. A lot of Japanese people go there on their trips ev S V

すみません、合っているか確かめてもらえませんか?

ことわざにあるように、 光陰矢の如しだ。 17 誰もが自分独自の価値観を有する。 18 菜食の恩恵 19 その映画は本当に見る価値があるよ。 20 その客にスープを出す 21 皆にお茶をつぐ Let's try a test! 1 日本経済 2 人々に水を供給する 3 要と供給 4 そのスーツは500ドルした。 5 大量のエネルギーを消費する 6新車を買う余裕がない。 7 この店の責任者はどなたですか。 8 私たちの今回の旅の予算 9 社会での女性の地位 10人前で話す 11 社会で重要な役割を果たす 12 他者との良好な人間関係をもつ 13人種差別と戦う 14 日本の伝統を伝える 15 会話の技術 16 22 そのバスには乗客がいなかった。 -5 23 大観衆の前で話す 24 この絵本の著者 私たちの職員の大半は アジア出身です。 the Japanese (e Cono my ) ) people with water (provide supply and (remand The suit ( (consume cost ) ) me 500 dollars. ) a lot of energy sor ve I cannot (afforod Who is in (charge our (budget women's status in ( speak in ( play an important ( have good (relationships fight racial ( pacism pass on Japanese (traditional the (technology) of conversation Public ) to buy a new car. ) of this shop? ) for this trip society ) import As the (Saying Everyone has their own ( values. the (vege tarian The film is really ( warth ) ) in society ) with others ) ) goes, time flies. ). ) of a vegetarian diet ) seeing. ( ( poun There were no ( passengers speak in front of a large ( the (author Most of our ( ) soup to the guests ) tea for everyone staff ) crowd 27 お年寄り ) of this picture book ) is from Asia. 30 彼女 131 132 133 ) on the bus. ) 134 135 136 13-