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数学 高校生

数列で、参考書で写真のような解き方があったのですが、記述の際にF(n)と置いて解答して行っても大丈夫でしょうか? よろしくお願いします

す。 Do Cilla, F(n+ 1) = r · F (n) † ! 等差数列型,等比数列型, そして階差数列型の漸化式につい 等比関数列 0 これまで, とう ひ を解くのに、みんな結構苦労するんだよ。 でも,これから解説する “等比 勉強した。でも、漸化式には,さらに複雑な形をしたものがあり,これ かんすうれつがた 数列型の漸化式” の解法をマスターすれば, 複雑な形をした漸化式も難 エッ, 名前が複雑だけど,“等比数列型 なくこなせるようになるんだよ。 の漸化式”に似てるって? その通り!! いい勘してるね。 実は等比関 数列型の漸化式”は “等比数列型の漸化式”とソックリな形をしている この2つを対比して,下に示すよ。 等比関数列型の漸化式 F(n+1)=r.F(n) ならば, F(n)=F (1).r"-1と変形できる。 (n=1,2,3,...) 等比数列型の漸化式 an+1=ran のとき an="-1 となる。 (n = 1, 2, 3, ...) どう? 等比数列型のan, an+1, a の代わりに等比数列型ではF(n), F(n+1),F(1) になってるだけで, 式の形はまったく同じなのが分かるね。 ン?でも、意味がよく分からんって? 当然だ! これから, 例を使って 詳しく解説しよう。 (ex1) an+1-2=3(a-2)... が, F(n+1)=r・F(n) の1つの例だよ。 F(n)というのは何か (nの式)のことで,今回,F(n)=a, -2 とおくと, nの式 F(n+1) は F (n) の n の代わりに n +1が入るだけなので, F(n+1)=an+1-2となるんだね。 そして, 公比rに当たるのが, T n+1の式 では3なんだね。 つまり,アの式は, 平面ベクトル 145 空間ベクトル 数列 21 確率分布と統計的推測 3) 41 No MASKARARE Da Int 8 L 2

解決済み 回答数: 1
英語 高校生

質問です。 四角で囲ったところがFなのですが、どうしてなのでしょうか?? 教えてください~!! 宜しくお願いします。

ⅦII以下のカーニバルの起源についての文を読んでそれぞれの問題に答えなさい。 From Samba in Brazil to masked parties in Italy, carnival is a truly global event, and it is celebrated in over 50 countries around the world. Carnival originated as a festival in ancient Egypt to *usher out winter and celebrate the beginning of spring. When *Alexander the Great *conquered Egypt, the Ancient Greeks *adopted the festival. The Romans *assimilated the festival from the Greeks and it was later *overlaid with Christian meaning to become the festival of "Carne Vale". The word, "carne" means "meat" in Latin, and "vale" means "good bye". In the Catholic calendar, “carne vale" is a *feast before the *fast of Lent. In 18th century Italy, people would hold fancy dress parties and *gorge before the fast. 四角の断食 日 20,002 *Alexander the Great : アレクサンダー大王 *conquer: 制圧する *adopt: 採用する *usher out: を送り出す *assimilate: 取り入れる *fast of Lent : 四旬節の断食 *gorge : 大いに食べる *overlay with: 上塗りする *Catholic : カトリックの * feast : 祭日 1. “carne"と" vale" がそれぞれ何を意味しているかを日本語で答えなさい。 【理解】 (2点×2) 2. “Carne Vale” とは何か、 解答欄に合うように日本語で説明しなさい。 【理解】 ( 2点×1) 3. 本文の内容と一致していればTで一致していなければF で答えなさい。 全て同じ記号で答えた場合はこの設問の 点数は0点とします。 【理解】 (2点×3) ア. We can find carnival only in Italy. イ Carnival originated as a festival in ancient Greeks. ウ. Ancient people in Egypt held carnival to celebrate new season.

解決済み 回答数: 1
英語 高校生

これの答え合わせお願いします!!

Lesson 1 Quick Review 主語を決める ① A [主語の決定 This book has two hundred pages. } □ 1. 夏休みはもう1週間ある。 Quiz There is 構文に。 I have another week of summer vacation. □ 2. 彼女の目は青色だ。 Quiz be 動詞を用いた文に。 e has blue eyes. B 見えない主語の発見 I had a fever last night. 昨日の夜。 熱がありました。 3. 今朝はあまり食欲がない。 I don't have much of an appetite this morning. □ 4. あなたは全力を尽くしました。 Quiz 「私は全力を尽くしました」に。 You did your best. □ 5. 日本では, 冬にマスクを付ける。 Quiz 「西洋諸国ではマスクを付けない」 に。 We.. wear masks in winter in Japan. □ 6. イタリアでは時折。 大きな地震が起きる。 Quiz 「日本では」 に They sometimes have big earthquakes in Italy. C主語のit It rained heavily all day yesterday. 昨日は一日中、雨が激しく降った。 □ 7. 今日はリサの誕生日です。 Quiz 「今日は母の日です」に。 It i Lisa's birthday today. □ 8. 今日は曇りで涼しい。 Quiz 「今日は晴れで暖かい」に。 It's eloudy and cool today. □ 9. 市役所まで遠いですか。 Quiz 「約300m です」と答える。 It is far to City Hall? □ 10. 私の番です。 Quiz 「誰の番ですか」に。 It's my turn. ****** Expressions+Check! □ 11. 日本では高齢者が増えている。 Quiz 「子どもが減っている」に。 The number of elderly people in Japan is increasing. □ 12. サッカーが好きな男の子もいれば, 野球が好きな男の子もいる。 Some childrenike soccer, and others like baseball. Quiz 「電話が好きな人もいれば、 メールが好きな人もいる」に。 □ 13. あなたの都合が良い時に電話してきてください。 Quiz 「今日は都合が良いですか」 に。 Please call me when it's convenient for you. There are two hundred pages in this book. 教科書 pp.8~9 この本は200ページあります。 Quiz 「今朝はあまり食欲がないんだね」 に。

解決済み 回答数: 1
英語 高校生

【英表】不定詞 分かるところだけでいいので教えて欲しいです🙏 お願いします✨

A日本文の意味に合うように, ( )内に適語を入れなさい。 いつ会議を開くか決まりましたか。 (→ロ. 2. 5 Have you decided ( 体重を落とすために父は会社まで歩いて行きます。 <pniob〉同 ) have the meeting? My father walks to his office in ( ) lose weight. 2)かぜをひかないように彼女はマスクをつけた。 She put on a mask so ( )姉はピアノは言うまでもなく, パイプオルガンも弾ける。 My sister can play the pipe organ, to( ) to catch a cold. ) of the piano. 5)彼はいわば日本のピカソだ. He is, so( ), a Japanese Picasso. 2次の各組の文がほぼ同じ意味になるように,( )内に適語を入れなさい。 |4 The camera is so expensive that I cannot buy it. 1) The camera is ( ) expensive( ) buy. We ran fast enough to catch the bus. 2) We ran ( ) that we( ) catch the bus. Jim was so kind as to carry my suitcase. 3) Jim was ) to carry my suitcase. 3次の各文を日本語に直しなさい。 1) The President is to visit Tokyo in October. 2) You are to be very careful when you cross the street. 3) Not a cloud was to be seen in the sky. 4日本文の意味に合うように, ( )内の語句を並べかえなさい。 1) リカは弁護士になるために, 一生懸命に勉強しています。 (to, a lawyer, order, be, in) Rika is studying hard 2) サムは新しいビジネスを始めた.友人たちはそうしないように言ったのだが、 (told, not, his friends, him, to) Sam started a new business, though Ma eun s nsd yimdo To buong emao 次の日本文を英語に直しなさい。 1)私はとても忙しくて野球の試合を見に行けません see the baseball game. I'm 2)まず第一に,その機械の使い方がわからないのです。 I don't know the machine. 3) マキは子どもにもわかるくらいゆっくり話した。 Maki spoke

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英語 高校生

広島大学の二次試験対策について質問です。 去年から新しく2個の資料から問題を解く形式に変わりました。慣れるために問題を解きたいんですが、去年の分しかありません(TT) 2個の資料を用いて問題を解いていく形式の長文がある大学の過去問を知っていたら、教えて欲しいです! ↓写真... 続きを読む

(I] Read the following two passages and answer the questions. 資料1 A cave-wall depiction of a pig and buffalo hunt is the world's oldest recorded story, claim archaeologists who discovered the work on the Indonesian island Sulawesi. The scientists say the scene is more than 44,000 years old. The 4.5-metre-long panel features reddish-brown forms that seem to depict human-like figures hunting local animal species. Previously, rock paintings found in European sites dated to around 14,000 to 21,000 years old were considered to be the world's oldest clearly narrative artworks. The scientists working on the latest find say that the Indonesian art predates these. Such artworks are notoriously difficult to date because they can be made with raw materials, such as charcoal(注1), which can be much older than the paintings themselves. But scientists excited the archaeological worid when they reported, in 2014 and 2018, that caves in Sulawesi and Borneo held artworks, including animal paintings, which were older than 40,000 years. The panel seems to depict wild pigs found on Sulawesi and a species of small-bodied buffalo, called an anoa. These appear alongside smaller figures that look human but also have animal traits such as tails and long noses. In one section, an anoa is surrounded by several figures holding spears and possibly ropes. The depiction of these animal-human figures, known in mythology as therianthropes (注 2), suggests that early humans in Sulawesi had the ability to conceive of things that do not exist in the natural world, claim 2 the researchers. The oldest such example from Europe is a half-lion, half-human ivory figure from Germany that researchers have estimated to be 40,000 years old-although Some suggest that it might be significantly younger. A roughly 17,000-year-old painting of a bison chasinga bird-headed human, from Lascaux Cave in France, is considered to be one of the earliest depictions of a clear scene in European rock art. To determine the age of the hunting scene, researchers led by archaeologist Maxime Aubert, at Griffith University, Australia, analysed calcite (注 3) 'popcorn' that had built up on the painting. Radioactive uranium in the mineral slowly decays into thorium. So by measuring the relative levels of different isotopes (往0 of these elements, the researchers were able to determine that calcite on top of one pig began forming at least 43,900 years ago, and deposits (注 5) on two anoas are older than 40,900 years. The dating gives scientists clues about the origins of figurative art. "t has always been assumed that the tradition of figurative painting arose in Europe," says Alistair Pike, an archaeological scientist at the University of Southampton, UK. "This shows the tradition does not have its origins in Europe." But he notes that the researchers dated only the portions of the painting that show animals, so it's possible that the therianthropes were added later. Aubert says the team did not find calcite samples over the therianthropes. Aubert thinks the animals and the therianthropes were painted at the same time. They are of similar colour and weathered in the same way, he notes, and all the other cave art from the region is from the same time period. Archacologist Bruno David, at Monash University in Melbourne, Australia, agrees with Aubert's interpretation. If the entire painting is more than 44,000 years olid, it could mean that early humans arrived in southeast Asia with the capacity for symbolic representation and storytelling. David argues. Archaeologists have already found paint palettes and objects such as eggshells with abstract engravings made by early humans in southern Africa, he adds. “'s probably only a matter of time before narrative paintings of this, and much older age, are found in Africa." (Adapted from Nature, December 11, 2019) (注1) charcoal 木炭 (注2) therianthrope 獣人 (注3) calcite 方解石 (注4) isotope 同位体 (注5) deposit 付着物

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英語 高校生

答え合わせがしたいので教えてください

「I|次の文を読んで、あとの問いに答えなさい。( wのついた語は文末に注があります。 ns Sitting in the consultation room of a charming cosmetic surgery clinic in Washmgo. D.C., Hudson Young removed his mask under the satisfied gaze of his doctor. Like a grownns number of Americans, Young decided the right time to undergo plastic surgery was middle of a coronavirus pandemic, He knew he would have time to recover in the privacy ot his own home. The main reason, however, was that Young suddenly found himself face to face with his own image while participating in an increasing number of videophone and web A 「Its something new when you have to stare at your face for a couple of hours a day and there's only so much you can do with good lighting and good angles," Young said. The 52-year-old real estate agent had allready been a fan of cosmetic surgery. He had face lift, eyelid surgery and laser resurfacing for the first time in October. "When you see yourself on Zoom, you are shocked," he explained, as Dr. Michael Somenek examined his w barely visible scars. Young is far from the only one who has found himself disappointed with the reflection he has seen in the screen over the past year. Virtual consultations for cosmetic procedures have risen 64% in the United States since the beginning of the COVID-19 pandemic, according to the American Society of Plastic Surgeons. “We have seen an increase in the number of surgical cosmetic procedures that are directly related to Zoom," said Somenek, who has seen a 50% to 60% increase in customers. “I think the pandemic B has given everyone time to take care of those things that we've been putting off until later," explained Ana Caceres, who was able to work from home after C a plastic surgery operation she had wanted for a long time. She recovered at. her parents' house outside Washington after a December cosmetic surgery that helped her D deal with a source of insecurity she had had since adolescence. "I didn't have to days off, because I was still able to work from my bed with my lap-top," the 25-year-old said. “When life is going on and you have places to be, it's s0 easy to put things off," Caceres said, showing off a dress she says she now has the confidence to wear. And she has scheduled more cosmetic surgery. Her surgeon, Dr. Catherine Hannan, says consultations at her clinic in the IIS comit1 E have nearly doubled since the beginning of the pandemic. "Our patients have more lines because the last vear has been so hard. A face or boay change can have a psychological

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