（2）m＝0代入するのは？わかるんですけどa＜0はa二乗＋2a−3はわかるけどあとの二つはm＝0を代入して求めるんじゃないんですか？？？😭😭

123 重 例題 71 最大・最小から係数の決定 (3) 00000 関数f(x)=x2-2ax+α+2a-3 がある。 ただし, 0≦x≦1とする。 (1) f(x) の最小値を定数αを用いて表せ。 基本 64 のを過 6445 程 介 2次関数の最大・最小と決定 の位置 ら、一般 の交点 ■るので、 e)(x-B もよい。 (2)f(x)の最小値が0となるような定数aの値を求めよ。 CHART & SOLUTION 係数に文字を含む2次関数の最大・最小 軸と定義域の位置関係で場合分け (1)f(x)=(x-a)+2a-3 から, 軸は直線x=αである。軸の位置が [1] 定義域の左外 [2] 定義域内 [3] 定義域の右外にある場合に分ける。 (2)(1)の結果を利用する。なお, 場合分けの条件を忘れないように。 脚生 (1)f(x)=(x-a)+2a-3 であるから,与えられた関数の グラフは下に凸の放物線で,軸は直線 x=α である。 [1] α < 0 のとき x=0 で最小値m=f(0) =α+2a-3 [2] 0≦a≦1のとき x=α で最小値m=f(a)=2a-3 [3] 1 <a のとき x=1で最小値m=f(1) =α²-2 (2) f(x) の最小値が 0 となるのは, (1) においてm=0 とな るときである。 [1] α < 0 のとき m=0 であるから a² +2a-3=0 ◆軸と定義域の位置関係 で考える。 [1] 軸 最小 x=ax=0 x=1 [2] 軸 121 最小 x=0x=ax=1 |軸 3章 8 真を利用 よって (a-1)(a+3)=0 ゆえに a=1,-3 形で考え [2] 0≦a≦1のとき α < 0 を満たすものは a=-3 m=0 であるから 2a-3=0 [3]| 3 これを解いて a= (x- 2 -bx t これは 0≦a≦1 を満たさない。 最 .* [3] α >1 のとき ともで これを解いて m=0であるから d²-2=0 a=±√√2 x = 0 x=1x=a α>1 を満たすものは a=√2 a=-3√2 [1] ~ [3] から うに! PRACTICE 値を求めよ。 719 関数 f(x)=-x-ax+2α(0≦x≦1) について,最大値が5となるとき,定数αの [類 国士舘大 ]

代名詞の語法 答えあっているでしょうか🥲🥲 特に3番が勘で選んでしまっていて理由が分かりません、、お願いします😭😭

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。 Terito sin asdio hul wig/bro edone □ 1. Although his parents wanted him to become a politician, he had no intention of becoming ( ). ① it 特定 the 単数名 ② him ③on ③③ one 不定 a単名 10 50 4 he 〈千葉工業大 >

否定の問題です。順番もお願いします

3.次の日本語に合うように、下の語句を並べかえ, (*)に入るものの番号を答えなさい、 (1) 彼はその手紙を読み終わって初めてだれが書いたのか気づいた。 It was ( ) ( * ) ( it. )( )( )( )( *) he noticed who had written What is ( finished ② not that the letter ⑤ he until Treading (2) やる価値のあることは, どんなに早くやっても早すぎることはない、 )(*) ( ) (*) () ( ) ( ⑩worth② cannot ③ doing ④ done ⓢtoo @be (国士舘大 * ) ) soon. [仏教大) (3) 私は彼らにもう遊ばないように頼んだ. I asked ( ) ( * ) ( ) ( (*) ) ( * ) ( ). ⑩to @longer ③play not ⑤any ⑥ them [関東学院大 〕 60

否定の問題です。並び順もお願いします

3. 次の日本語に合うように、下の語句を並べかえ,(*)に入るものの番号を答えなさい。 (1) 彼はその手紙を読み終わって初めて、だれが書いたのか気づいた。 )( )( )( )( *) he noticed who had written It was ( (*) ( it. finished @ not ③that the letter She until reading 〔国士舘大 *〕 (2) やる価値のあることは、どんなに早くやっても早すぎることはない。 What is ( ) ( * ) ( @worth @cannot ③ doing ④ done (*) ( ) ( too ⑥he )soon. [仏教大) (3) 私は彼らにもう遊ばないように頼んだ、 I asked ( @ to longer ③ play @not ⑤any (*) ( ) ( )( * ) ( ). them [関東学院大 ]

関係詞の問題です。教えてください。

1. 次の文の( )に入る適当な語句を①〜④から選びなさい。 (1) A: This watch is for you. B: Thank you! It's just ( ①how > I wanted. ②what that @ so that 〔名古屋学院大) (2) Great people are too often unknown, or ( ①what (3) The time will come ( 2 who ) is worse, misunderstood. they ④as [東海大] how ) you will regret it. ⑦when ③where why [大阪商業大 ] (4) Next Sunday the college reunion party will be held, ( that ②where ③which ) you can meet your former classmates. who [武庫川女子大] (5) You may invite ( wherever ) wants to come. that ③whatever whoever (敬愛大〕 (6) No matter ( which ) happens, Linda won't change her mind. ②what ③who where [国士舘大]

この問題の求め方を教えてください🙇🏻‍♀️

●Complete *9 (1) 2,-1) を中心としてy軸に接する円の方程式を求めよ。 100 [01 国士舘大 ] 軸の両方に接する円の方程式を求めよ。

答えあっていますでしょうか🥲🥲

20. This is a very large theater. It has a seating ( Dcapacity 2 ability ) of 3,200. 3 possibility 21. "Can you tell me where Niiza Station is?" "I'm sorry but I'm a ( 1 local ) here." 2 beginner (3) 初めての人 probability in ③ stranger 4 regular <跡見学園女子大〉 Aを自由に操る ant 4 way 〈札幌大〉 22. Educated in the U.S., Kozue has a good () of English. have a good command of A ① tongue 23. I have no ( 1 knowledge ②command 2 command o 3 use ) what he wants for his birthday. have no idea ②idea 3 consideration ④eagerness brfis m'l (B) 24. When you have time, please drop me a ( Daine 2 ring ) at kyorin@kyorin.ac.jp. drop A a line に一筆書き林大 3 phone 4 call 25. Let's go to the movies tonight. I'll look at some websites and ( see what's playing. ⑰give 2 offer Do 3 sell ) you a ring after I & give Aaring Aに電話を 4 buy かける 〈中央大 > 2 次の英文の下線部には誤っている箇所が1箇所ある。 その番号を選び, 正しい形に直しなさい。 一不可 26. Passengers should check their luggages with the airline agent at the ticket counter. luggage 〈国士舘大〉 27. I found that I had completed only about two third of the work I should have done so far. 19 〈西南学院大〉 ④ 1 thirds 3+ ZUKI ③ ③ 次の日本文の意味になるように,( )内の語を並べかえて適切な英文を作りなさい。 pany 28. 警察が提示した証拠をもって、彼の有罪は疑いの余地がなくなったようだ。 With the evidence presented by the police, there (no / doubt /for/room / about / seemed / be/his/to) guilt. w seimong alam seemed to be no room for doubt about his nomin 29. ここへ来るのに1時間半かかりました。 It (here / come / and /to/a/ one / took / hours / half ). G 〈関西外国語大〉 aib (1) yag of wend l'o took one and a half hours to come here

答えあっていますでしょうか😭😭 21番の訳を教えて下さると助かります、、🥲🥲 20番の問題、なぜこれを選んだのか説明する時、私はこの問題は意味で選んでいるのですがそれで大丈夫ですか、、？

20. This is a very large theater. It has a seating ( ① capacity 2 ability ) of 3,200. 3 possibility 21. "Can you tell me where Niiza Station is?" "I'm sorry but I'm a ( ) here." 1 local 2 beginner 初めての人 20 Ding ou probability to o olni omoe ③ stranger 4 regular bed W 〈 跡見学園女子大〉 22. Educated in the U.S., Kozue has a good (1) of English. have a good command of A 1 tongue 23. I have no ( 1 knowledge ②command 3 use Aを自由に操る and way 〈札幌大〉 ) what he wants for his birthday. have no idea pryzeu ②idea 3 consideration 4 eagerness bisnis m'l (B) 24. When you have time, please drop me a ( ①1 line 2 ring <広 ) at kyorin@kyorin.ac.jp. drop A a line 3 phone anie 4 call 人に一筆書き送造林大) 25. Let's go to the movies tonight. I'll look at some websites and ( see what's playing. Mo⑩give abront 9 ) you a ring after I 2 offer mistion 3 sell bgive A box4 buy a ring A ebohsq かける enhol ml (***) 1950 ② 次の英文の下線部には誤っている箇所が1箇所ある。その番号を選び,正しい形に直しなさい。 luggages with the airline agent at the ticket counter. luggage meat to 一不可 26. Passengers should check their som 27. I found that I had completed only about two third so far. ④ 〈 太山南> hsgolovsb and 〈国士舘大 〉 the work I should have done ird of the Thornletas 1 bias thirds 分子が2以上 linen 〈西南学院大〉 enia → 3 次の日本文の意味になるように、()内の語を並べかえて適切な英文を作りなさい。 (大) (大) any 28. 警察が提示した証拠をもって, 彼の有罪は疑いの余地がなくなったようだ。 With the evidence presented by the police, there (no / doubt/for/room/about/ seemed/ be/his/to) guilt. iw salmoq 〈関西外国語大〉 T seemed to be no room for doubt about his At ☐ 29. ここへ来るのに1時間半かかりました。 〈大劇画> 9ni of Ved 'WOY <中部> It ( here / come / and /to/a/ one / took / hours/half). took one and a half hours to come here my a tal sift at lyd and sole ni grovil to t

答え合ってますでしょうか😭😭

8. He couldn't arrive on time because the train was ( ). 1 late 健れて 2 lately 3 latter 志 ④ latest <東京国際大 〉 9. The fancy restaurant was full of diners, ( ) women. 2 mostly of whom were 1 almost of whom were 3 who are most 10. I was ( 1 hard 4 who were mostly 主として ) asleep when you arrived. That's why I didn't hear you knock. vbre 2 fast ②fast, quε 3. some 791 ぐっすりと 11. Their daughters, Cathy and Mary, were seven and five ( respectfully 2 respectably h0 〈中央大) JAP 4 slow 〈関西外国語大〉 ④respectful Provinu 94T TAP <愛知医科 ) for me to drink. much too+形 あまりにも~すぎる 3 respectively 21B9Y THOT 9101 12. I can't finish this coffee. It's ( 1 hot ② vion much too hot 各自に ) 3 too much hot 4 Every hot 13. You had better keep your mouth shut; () you'll get into trouble. 1 and 1912 however vlet 3 otherwise しかしながら <鹿児島大 〉 Hear 4 therefore 〈明治大 ), the tourist 02 (9) Besides t ④However fo9q send 〈日本歯科大 〉 19y D 14. I don't want to go to Europe this summer. It's very expensive. ( attractions are often too crowded. ⑪Besides So 910191941 (1) 3 Because riguror & (大) 15. I want to go to graduate school. ( 1 Therefore The Otherwise =moreover ) I must study to pass the entrance exam. 3 Or 4 Nevertheless 〈国士舘大〉

答えあっていますでしょうか🥹🥹

22. We'll have lunch at twelve thirty. Will ( )? 1 you be a convenience 3 you be convenient 2 that be a convenience ④that be convenient 人を主語に用いな炭部構 京都精華大〉 23. Bev is very talented, especially at languages. She is capable () speaking at least four languages. 1 of 2 at Sis capable of doing できるを表す形容詞 3 for is ngibus 4 in 24. (a) It is impossible for me to overcome this problem. S is able to do a (b) I am not ( 1 possible to ) overcome this problem. Jabl 2 capable of doing ③ able to 25. It is natural for workers to complain about their salary ( 1 be so significant 2 be so small <国士舘大 〉 allix possibility of 〈神戸学院大 〉 ). 給料 high/lowで修飾できる名詞 3 being too cheap (4 being too low 〈西南学院大 〉 26. I cannot believe how ( on \ainsbur2 ) their prices are! light 2 expensive 3 few 27. The number of workers who leave the company every year is very ( 〈東京工芸大 high Isma 1 small 2 short 3 much 28. There was a ( audience in the concert hall. 1 much 2 heavy (3) lot 4 thin 〈大阪産業大〉 large/smallで修飾できる名詞 ④large 〈淑徳大〉 29. Nikko is worth ( 1 visited ) to see the autumn leaves. Ais worth doing Aは~する価値がある。 2 been visiting 3 visiting being visited 〈 杏林大〉