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English Senior High

高校受験を控える弟のテストです。回答がなく困っています。どなたか回答してくれませんか?

BO (2)次は,かえで町で開催されるイベントのお知らせです。 Kaede Summer Festival We will have Kaede Summer Festival in Kaede Park in August. There will be more than 60 shops, and you can enjoy many events on stage. In the evening, you will see beautiful fireworks. Come and enjoy the summer! Schedule <Day 1> Saturday, August 10 From 9 a.m. to 9 p.m. 10:00 Yosakoi Dance 1:30 Music Performance by 6:00 Mr. William Teller Bon-Odori 7:00 Fireworks Show Information about Events Mr. William Teller will join our festival. He is a famous singer around the world. When he was younger, he lived in Kaede Town for one year. He decided to come back for Kaede Summer Festival this year. Come and enjoy his great music! <Day 2> Sunday, August 11 From 9 a.m. to 8 p.m. 000.00 00002 11:00 Dance Performance by children 3:00 Yosakoi Dance 6:00 Bon-Odori 7:00 Fireworks Show Kaede Yosakoi dance team will show their performance. They won a Yosakoi contest in Hokkaido last year. Their performance will be exciting. They have made their dance easy for the people of Kaede Town. You can dance with them! On the second day, children of the dance club at Kaede Elementary School will perform their dance. They practiced dancing hard for this festival. Enjoy their cool dance! will sď You can see the fireworks show from anywhere in the park. * Children under 13 years old can't enjoy the festival after 6 p.m. without a parent. (E) schedule anywhere どこでも W in evil won bis vti alueji ni rood asw.exp VT to adband pig box by var Joods moilimbi amox fox ral0Y+ rady (nam you of ved Imobre VIO 2008 in noble nibit won a toy tili da ni vil o bha alging so I -7-

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English Senior High

合ってるかと288教えてください🙇‍♀️

40 30点 30) 点 学院大) 院大) 三大) □279 ア □280 (1) too 2 neither Vintage If they do not go, I won't ( 文美 [ 5 either This is not also as well madi 190in some used) might appear. My mother never goes shopping at the department store ( ne gniz①with base2 without □281 ) buying a lot. Level 3 but nauyet nim to boord A 2 獨協大 vdgun Never ( ) such an interesting novel.ha more/people/than/to). 197 976 have I read edt bao 89972 have read Illib yasm 98 99 3 I have read read I have salib yas mi nomm 282 He likes this kind of music and (b).brow long srt is "eboo ① so I do 3 do I so be om list bus lism- sold way blu res <日本大〉 ses <関東学院大 > Ees 副校西 (0 2 I do so 4 so do I would / is) friends cancel Stop to □283 I seldom, ( ), eat fast food. 300 Dif any 3 if ever L/JH ② if onlyに気づいた。 ④if never (i) er 〈金沢工業大) && (7) ven J □284 It is because he is intelligent (1) I respect him. \es \as) ai beli 9dT 大工) 1 how 2 that ③ when 4 of which ⑤ whom □285 How in the ( ) did you do that? (neilt West 19 平) pes 208e1 ** 〈昭和大〉 Easton earth batquo worlds2 betin dT (***) proteid mobom ni ② 次の各組の英文がほぼ同じ内容になるように,( )に適当な語を書きなさい。 □286 (a) No other student in this class is brighter than Jane. 基本 (大平) □287 (b) Jane is the (brightest ) (2 student) in this class. w \al) <A on boy dwabnoqob vllson fi ozunu gids ei nisq? IsW: (a) The teacher said to us, "Where are you going?" (b) The teacher asked us where we ( 27 were ) going. 288 (a) She said to her son, "Go to bed right away." (b) She ( ) her son ( 〈水産大〉 < 東京理科大 〉 ) go to bed right away. 〈水産大〉 Aviator 450 41

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Mathematics Senior High

この問題の四角で囲んだ箇所の計算が分かりません!誰か解説してくださると嬉しいです。宜しくお願いいたします🙇

1 等差数列と等比数列 (39) Think 例題 B1.16 等比数列と図形 **** ¥ Ai(1,α)/l 直線 y=ax (a>0) を l とする.ℓ上の点 A (1, α) からx軸に垂線を下ろし、その足B, からに垂線を下ろし, その足を A2 とする. さらに点Aからx軸に垂線を下ろし、その足 を B2 とする. 以下これを続けて, 線分 A3 B3, A,B, ・・・・・・ を作る. また線分ABの長さを l とおく. (1) l1, l2, l3, ・・は等比数列であることを示せ. Az A3 O (2) li+ l2+ ls+ ...... + ln を a で表せ. (明治学院大改) 「考え方」 解答 y=ax と x軸のなす角を0とおくと, △AOBABABA2B2 A2B2A3co・・・・・・ より 0=∠AOB=∠ABA2=∠B1A2B2=∠A2B2A=...... (1)∠AOB= 0 とおくと, lAa より cost=- OB_ 1 OA₁ √a²+1 △ABA2△A,OB より, ∠ABA2= ∠AOB=0 したがって, A2B=AB cost=licoso 同様に, l2=A2B2=A2BICOSA B3 B2 L B₁ x A (1, α) より OB= AB=αであるから, OA₁ = √√a²+12 △ABA2とAOB ∠BA1 A2=∠OAB ( ∠AAB=∠ABO △ABIAA OB1 よって, ∠ABA2=∠AOB AAOBAA₁B₁A △BA2B2 の相似」 1 1.T =licoso.cost=licos'0= a²+1 なので, 1 同様にして, ln+1= -lm が得られる. '+1 よって, l1, l2, ls, ...... は, 初項 α. 公比 の等比数列である. +1 (2)0 より, 1 a²+1 a²+1 li+lz+ls+... + ln a{1-(a²+1)}_a{1-(a²+1)"} a°+1 (a+1)"-1_ (ω°+1)"-1 キ1 なので、 A2B2 を A B で表す できる. 1 初項 α,公比- a²+1 数列の第n項までの a a²+1 100% a a(a+1)-1 (a²+1)" dear Focus 図形のくり返し相似条件に着目し、隣接項の関係式を導 練習 直線 y=ax (a>0) をℓとする. l 上の点A(2, 2a) からy軸に垂線を 1.16 その足 B, からℓに垂線を下ろし、その足をAとするさらに点Aから *** 垂線を下ろし、 その足をB2 とする. 以下これを続けて, 線分A3B3, Al * a

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