数学IIの三角関数のもんだいです。 (３)の問題がわかりません。 セをとくときは、FX=１を代入するだけでとけるのに、ソはどうしてαのまま代入したり二乗したりしなければならないのかがわかりません。 また、セとソで解法が変わってしまうのがなっとくいきません。

167890 97896 000 578907 3000 789086 789036 (注)この科目には、選択問題があります。 第1問 必答問題) (配点30) (1) 関数 について考える。 f(x)=2 sin2x-√2 cos(x+4) (1) (4) アルである。 (2) 0≦x 加法定理と2倍角の公式より である。 の最大値を求めよう。 の範囲におけるf(x) ++ ス sin2x= F sinxcos x である。 よって, t = COSx f(x)= オカ となる。ここで, 0x ク sts コ である。 したがって, 0≦x≦πの範囲におけるf(x) の最大値は サシ t ウル frai= - (cosx=sinx) コーヒー2 sinx とおくと, f(x) は t + ① より ものとり得る値の範囲は であるから (数学ⅡI・数学B 第1問は次ペー ① (3) 0≦x≦xの範囲において, f(x)=1を満たすxの値は α, である。 ただし,αは 4 tz 0<a< を満たす角である。 の解答群 -1-√7 4 Cos |x-1= セ ① (65) かつ sina= ソ -1+√7 4 Jr1=25in2x -√2 cos (+372) ttl=2sin'=> +he cos sete 本 √9 √ (cos-sur! COSIX- ② Shea = 2inacos(x frm= 45tumnos - com 6 = cos(xX - Cosa - Stuck. Sina 1-√7 4 ⑦ 1 1 第1回 (数学ⅡⅠ・数学B 第1問は次ページに続く。) 1+√7 tootstancessin 2sincos = (-=² 457h. 005 - 2-27² frax=-7-27²+2 T=-Spancy cos y t= sium-cos.xx t=su (x-2) そのとき (4)

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6. I was very pleasing to hear that news. 7. The baseball game was very much excited. 8. 9. 10. 11. (工学院大) (小樽商大) I can't help to laugh. ( 徳山大) We are all looking forward to hear the news of his success. (名古屋市大) Unless you stop to fight, I'll call in the police. (*) Seeing from a distance, it looked like a human face. (お茶の水女大) (京都教大) a woman (岐阜経大) 12. Being a fine day, I went out for a walk. 13. Knowing not where the station was, I asked the way there.

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1. Please have my luggage carry to the station. She avoided to look at him all the time. 2. 3. I am sorry to have kept you wait so long. (t 4. He was stolen his pen. 5. A drowned man will catch at a straw. 6. I was very pleasing to hear that news.

英作文添削お願いします！！！

IV Read the following passage and answer the questions in English. ( 25 ) XEJECU 11THOFLO Lin Traditionally favored by private institutions, school uniforms are being adopted by US public schools in increasing numbers. According to a 2020 report, the percentage of public schools that required school uniforms jumped from 12% in the 1999-2000 school year to 20% in the 2017-18 school year. that playing field Supporters of school uniforms say that they create a "level reduces socioeconomic inequalities and encourages children to focus on their studies fu O 09 rather than their clothes. T TAS FOTK Opponents say school uniforms prevent students from expressing their individuality, and have no positive effect on behavior and academic achievement. DESCOSO 5 (1) (1) Based on this passage, what does "level playing field" mean? Write around 40 words. Ma>** (1) (8) * 18* (2) What do you think about school uniforms? Are you for or against them? Explain your opinion with reasons based on your personal experience, using around 70 words.

英語のこの問題を教えてください🙇🏻‍♂️ (　　　)内から適切なほうを選びなさい。 The number of people (　　　) buy e-books on the Internet is increasing. ・who ・which

現在完了形と過去形は一緒に使えないと習いましたが、この場合はどうですか

2. 海外の大学に留学する日本人学生の数は、1980年代に急激に増えましたが、 2 004年以降は減少傾向が続いています。 The number of Japanese college students who study abroad increased sharply in the 1980s, but it has been decreasing since -2004.

英読解の問題です。 すっかり忘れてしまったため何も分かりません。 4問教えて欲しいです。お願いします><

E 4. 次のメールを読み、 (1) ~ (4) についてA~Dで適切なものに○をつけなさい [2点 From: 121 To: Subject: Date: September 17 Dear Mr. Calms, We found the customer response to our new online game, ( 1 ) different from what we expected in many ways. For example, teenage boys have been our biggest market for our games. (2) Bizz Fighter is popular among both boys and girls. I have put a brief ( 3 ) of our survey on your desk. That included the market data in the survey as well as some other interesting purchasing trends. ( 4 ). I do think Bizz Fighter will only continue to increase in popularity. Sincerely, Gail Thompson (1) (2) Gail Thompson, Marketing Director Richard Calms, CEO Online Game (3) (4) (A) amaze A.N.) Consider it done. (B) amazement (C) amazingly (D) amazing (A) yet ((B)) to (C) either (D) from (A) itinerary (B) summary (C) lease (D) prescription As you said brevis e forgot to order meals fast (the (A) Please let me know your choice by September 30. (B) That is why I am requesting this extension. (C) We invite you to sample our other great online games. (D) I hope you have time to read it and get back to me. Bizz Fighter,

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3. 日本食はおいしくて健康的なので,最近, 日本食を楽しむ外国人が増えつつある。 Model Answer (愛知大) Lesson 6 25

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●基本例題 2. 次の日本語に合うように空所に適語を入れなさい。 出版社の数は減っているけれども、ますます多くの大学卒業生がそこで働きたいと思っている。 (中部大*) Although ( ) ( ))( ) publishing companies ), more and more college graduates want to work for them. (

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1 英文中の空所に入る適切な語または語句を選択肢から選びなさい。 1. Neither eating (3) acceptable in class. →179 (/\FI*^) nor chewing gum is 2 or chewing gum is 3 nor chewing gum are 4 or chewing gum are 2. It is generally believed that physics, as well as mathematics, () abstract logic. →179 is requiring 2 requires 3 is required 4 require (X) 3. Not only she but also I ( 1 am ) to blame. →179 are 3 has 4 is (#*#*7*) 4. Half of the cars ( ) of a light color. →180 has 2 have 3 is 4 are () 5. A third of the potatoes ( ) bad. →180 has been 2 is 3 to be 4 were (IX) 6. Throughout the last six months, there has been ( increasing increased 3 an increase 4 increases (MX) box smo nov (G ) in the price of gold. →181 7. Recently the number of families with two working parents ( 1 are 2 be 3 have been 4 is (*) LOW I DOD ( moy scode wall ) increasing. →182 exiless lie dok 8. Movies in Japan are quite expensive and, with most theaters located downtown, ( such a popular option for people in the suburbs. →183 1 may 2 is 3 must 4 are () N ) not