(3)を自分で解いたのですが、解説を見ても自分の解答のどこが間違っているか分かりません。 (計算間違いかもしれませんが) ご指摘お願い致します。 1枚目→問題 2枚目→私の解答 4枚目→解答解説

10 - 1 数列{an}は n Σak= -2an+2+¹ (n=1, 2, 3, ...) k=1 を満たしている. 次の問に答えよ. (1) 初項 α を求めよ. (2) +1 を an を用いて表せ. (13) 数列{an}の一般項を求めよ.

時間を意識して解きたいのですが、目安時間が分からないです。偏差値60を近いうちの目標にしている者です。 これは400 word 神奈川大学の問題です。記述が4問、選択が2問という点も考慮して目安時間を教えて頂けると嬉しいです。お願いします。

400 words/ Unit 7-Language - 1 All over the world, there are hundreds of languages that will soon disappear, some of them spoken only by a single person. "Languages are now dying at a faster rate than ever before," said David Harrison, a professor of language studies. Harrison has traveled the world to interview the last speakers of languages that are in danger of disappearing. 5 2 Bolivia* has a far greater variety of languages than all the countries of Europe combined. but they are increasingly threatened by dominant languages such as Spanish. In Bolivia, Harrison met with people who have used certain plants as medicine since the time of the Inca Empire*. Besides a common local language, they also maintain a secret language to name thousands of plants used as medicines, some unknown to science. 10 3 (1) When a language is lost, centuries of human thinking about such things as animals and plants may be lost with it. Eighty percent of existing species have not yet been discovered by science. However, (2) this does not mean that they are unknown to humans, because the people who live close to them know those species (3)intimately. They often have more detailed ways of classifying them than science does. 15 4 In Micronesia*, there are a handful of people who can sail across thousands of kilometers of ocean without any modern instruments of navigation. Their languages have a special set of terms for these skills. If their languages are lost, (4)their navigational skills will be lost, too. 5 Children are often the ones who decide to abandon a native tongue. "(5)It's actually the children, not the parents, who have the power to make the decision that will affect the 20 community and the future of their language," Harrison said. He was encouraged by an experience he had in Australia, when he watched a woman in her eighties teaching her language to schoolchildren. She was one of only three speakers of an aboriginal* language. The lesson was about plants which are used as medicine in aboriginal culture. 6 "The children had chosen to learn the language - no one forced them. When we 25 asked why they were learning it, they said, 'This is a dying language. We need to learn it.' The woman waved the plants in front of the children and said something in her language about them, which they repeated. It was an amazing thing to watch her communicate that knowledge to the children. That inspired us greatly." quor 左の英文を読み、下の各問いに答えなさい。 ごとの SPONS 1. 下線部 (1) を日本語に直しなさい。 ただし, it が何を指すのかわかるようにすること。 下線部 (3) の意味として最も適切なものを選びなさい。 [3. with a deep knowledge 3 in one's private life 2. 下線部 (2) を日本語に直しなさい。 ただし, this が何を指すのかわかるようにすること｡ 5. 下線部 (5) を日本語に直しなさい。 3050 in a friendly manner 4 in secret 4. 下線部 (4) はどのような技術か, 日本語で説明しなさい。 2x030 D 6. 本文の内容に合うものを2つ選びなさい。 Harrison has traveled even in dangerous places to interview the last speakers of disappearing languages. The total number of languages in Bolivia alone is larger than that of all the languages used in Europe. From a scientific point of view, the medical plants used in Bolivia have little value. An old woman in Australia was teaching her language to children, but they did not want to learn it. The old woman was teaching not only her language, but also her knowledge about medical plants in her aboriginal culture. istory Culture anguage ociety Health Science Nature

最後の文のhis paintingからの文を能動態に変えたら2枚目の文で合ってますか？

painters of the twentieth century and the fath EN ELT However, for most of his life, his paintings were rather slighted and thought of as naive. 01 受動態の文の主語は能動態の文の GA) 文(清泉女子大) permotenent LE

左の文中の空欄に適するもの右から選ぶ問題です 教えてください🙇‍♀️

But then one has to ask: why has this artist refused the established tradition? It is only part of the answer to insist that the artist lives far away from the center of the tradition, or on the edge of society. Doubtless anyone, if he or she wanted, could get access to the paintings and images of the dominant culture of the day. The primitive artist doesn't bother. Why? Because he or she knows already that his or her experiences have no place in the established tradition. What is forcing or driving primitive artists to create art is precisely They speak a different language from that used by the establishment. The will of primitive artists comes from faith in their own experience and a deep distrust of the societies in which they live.

教えてください🙏

FXD ( の 記号で答えなさい。 1. My brother stopped () on his doctor's advice. 7. smoking 1. smokes I. to have smoked . smoked 2. The truck ran over a girl and her dog ( ) just crossing the street. 7. who were 910289 I. that were 3. To ( )に入れるのに最も適した語句を下のア~オから選び、 1. who was es *. which was ) the matter worse, my mother fell ill. sablool si sv 1. keep 7. take I. get *. find B 4. Unfortunately the student had her pocket() in the train. 16912 1. picks 7. make OST sig. 7. pick HE 38 128 *. picking 5. The boy was told not ( 7. enter *. entered . to smoke 1. to enter gi bointing tool . which were beassig.d I. to pick . picked dacym siam t'oblio I tud jead yuy bib 1 (1) bastansbru bonjeraha ) the classroom. (8) . entering I. enters bu b basit bit geome savod's wis (2) will doi

この問題の青線部の挿入部分のsayはなぜ必要なんですか？下の全文訳のどこにsayが現れてますか？また、挿入部分両脇にカンマがあって、sayの両脇にもカンマがあるのですごく訳しづらいのですが、挿入はどうすればうまく訳せるようになりますか？よろしくおねがいします

11 演習 11 (問題→本冊: p.23) The stranger in London, especially if he has come, say, from Paris, finds London at first a little drab, but later on as he explores the city and begins to make friends he finds that it has its own special intimacy and charm. 【全文訳】 ロンドンに初めて来た人は、 特にたとえばパリから来た場合, 初めは少々つ まらないと思う。 しかし後でその都市 [ロンドン] を踏査して友人を作り始めるうち に, それ [ロンドン] 独自の特別な親しみと魅力があるのに気づく。 【解説】 前半は主節の主語と述部の間に副詞的 if節が挿入されているが, at first 「初 めのうちは」 を( )にくくり a little を除くと, stranger finds London drab 「初め 来た人はロンドンをつまらないと思う」。 but の後は [as... friends] のようにくく 。 まずas は「~しながら, 〜するうちに」の従属接続詞。 この課のポイントは nds の直後の that を見のがさず, さらに finds that it has ... の形から that を it has とセットにし, that 節が finds の目的語であることを確認して｢それ [ロンドン ] が ... ARCHE を持っているのがわかる」とする。 LT-1

(3)全分からないので教えて欲しいですm(_ _)m

して表す方 般的な解法 を問わない ≧1と設 のとりうる わる。 =+y+z 2 ==x+22 ことり めると 0, 3 合分け。 U 3 EX ③8 3通り。 x=5のとき y+z+w=5 よって, (y, z, w) =(3,1,1), (2, 2, 1)の2通り。 x=6のとき y+z+w=4 よって, y, z, w)=(2,1,1) の1通り。 y+z+w=3 x=7のとき よって,(y, z, w)=(1,1,1) の1通り。 ゆえに、10を4つの自然数の和として表す方法は 2+3+2+1+1=9 (通り) (2,2, 2) の 男子5人と女子2人が横に1列に並ぶとき、 次の条件を満たす並び方は,それぞれ何通りあるか。 (1) 両端が男子である。 (2) (1) の並び方のうち, 女子の両隣が男子である。 (3) (2) の並び方のうち, 特定の男子 a, 女子bが隣り合う。 (1) まず,両端に男子が並ぶ方法は 5P2通り THINTI 両端が定まると,その間の5人は,残りの5人が並べばよい (1) 男□□□□□男 から, その並び方は □には男女どのように 5! 通り よって, 求める並び方の総数は 5P2×5!=5・4×120=2400 (通り) 5通り (2) まず, 男子5人が並ぶ方法は 次に、男子の間の4個の場所に、女子2人が並ぶ方法は 4P2通り よって, 求める並び方の総数は 6.80 HOSUNOR S 5!×4P2=120×4・3=1440 (通り) (3) 特定の男子 a, 女子 b の並び方は 2通り そのおのおのに対して, この女子に隣り合うもう1人の男子 の選び方は ると, Ⅰが左から2番目の 4通り この3人1組を男子1人とみなして残りの男子3人と女子1 人を合わせた男子4人と女子1人について (2) のように並 ぶ方法を考えればよい。 ゆえに 4!×3=72 (通り) よって、求める並び方の総数は 2×4×72=576 (通り) 男子4人が並ぶ方法は 4! 通り 次に、男子の間の3個の場所に、女子1人が並ぶ方法は 3通り 別解 wについて とり うる値の範囲を求めると 4w≦x+y+z+w=10, w≧1 から 1≦w≦2 w=1,2で場合分け。 並んでも構わない。 (2) 女子の両隣が男子 男○男○男○男○男 の○に女子が並ぶ。 (3) 特定の男女1組をひ とまとめにしてもうま くいかない。 そこで、 もう1人男子を加えた、 3人を枠に入れて考え る。 X:3 1章 EX

この英単語のクロスワードを解いてみてください

8 17 1 120 15 2 15 12 10 6 3 9 19 |18 13 16 4 11 14 7 Across 2. related to medicine 6. usually 8. a place like a school 9. without stopping and starting 12. not awake 14. put in order, best to worst 16. not old 17. put in the skin with a needle 19. The painting is on a dream. 20. Not many people came. There were only a of people. Down 1. fix 3. one's situation 4. not extreme; not hot/spicy 5. relaxed; -going 7. You can on me. Trust me! 10. study carefully 11. go all around 13. suggest 15. related to the mind 18. Ming is only 16, but he likes to himself off as 19.

空欄の部分の単語を教えてくださいお願いします！

17- 20 18 1 15 m e n 18 1 + C the clues below to complete the crossword. 5 i 12. u 10 D 2 a S a J U 6 W O attent 3 1 C m d 95 + 19 a m m 18 la J a (0 C 010lthl 13 m 4 16y m 1 TY á 11 9 o us r 14 S S a Across 2. related to medicine 6. usually 8. a place like a school 9. without stopping and starting 12. not awake 14. put in order, best to worst 16. not old 17. put in the skin with a needle 19. The painting is 20. Not many people came. only a of people. on a dream, were There Down 1. fix 3. one's situation 4. not extreme; not hot/spicy 5. relaxed; --going 7. You can 10. study carefully 11. go all around 13. suggest 15. related to the mind Bef Ans on me. Trust me! 18. Ming is only 16, but he likes to himself off as 19 1. 2. 3.

質問は写真の方に載せておきます 教えてください

赤線部は代入していくたびにnの範囲が n>=4,n>=5と制限されてしまうと思うのですが、 どうしてn>=2で成り立つと言えるのでしょう か?