数Ⅰ＊２次関数 (2)です なぜx＝1のとき最大値は-m+7になるのですか？ 教えていただきたいです.ˬ.)"

DISNEY 68 第2章 2 Step Up (p.107) 7 (1) αを負の定数とする. 2次関数f(x)=ax²-2ax+b の-2≦x≦2における最大値 0010 (2) 関数y=x2+4x-m+2(-2≦x≦1) の最大値と最小値の和が0のとき,定数の が12, 最小値が−6のとき, α, 値とそのときの最大値、最小値を求めよ. <考え方> (1) グラフは上に凸 (1) y=f(x)=ax²-2ax+b とおく.! y=a(x2-2x)+3 軸は直線 x=1 より, 区間 -2≦x≦2 内にあるので,軸のところで最大値をと り,軸から遠い方の区間の端で最小値をとる.0)=(-x) (1-x) (2) グラフは下に凸 =α{(x-1)²-1}+b =a(x-1)2-a+6 *a<0 より -2≦x≦2 のとき, グラフは右の図 のようになる. したがって, グラフより, x=1のとき最大値をとるから、 軸は直線 x=-2 より,区間 -2≦x≦1の端にあるので,軸のところで最小値 をとり、軸とは反対側の端で最大値をとる. - a+b=12 x=-2のとき最小値をとるから, 8a+b=-6....... ② よって, ①,②を解いて, (2) y=x²+4x-m+2 ×になる. = (x+2)²-m-2343870 より, グラフは右の図のよう グラフより, x=1のとき? ..... よって, このとき 最大値 +7 x=-2のとき, 最小値-m-2 AS M をとる. 最大値と最小値の和が0だから, (-m+7)+(-m-2)=0 m= bの値を求めよ. 9 2 BAY RAJSTOASA 2 12 -2 a=-2,b=10 最小 0 12 9 最大値 12/27(x=1のとき) 最小値 最小 最大9 1 2. ! YA I -6 x=-2のとき) 73024 O 1 1 x 3> x=98 x 08431 SAVO 3624 8:8-09 : 90 FH-HES THE BAT 軸から遠い点ほど yの値が小さい。 α<0 を満たしている. 1983 098 RAIDASTOPAD * 01 2>*>0 ので、絶によ 201

各文の誤りを訂正して下さい。 よろしくお願いします🥺

6. I want a car, but I have no money to buy it with. (西南学院大) 7. You need not have been afraid of my that dog. (*)

右側の2行目から3行目の変形はなぜできるのですか？ 差の形からf(x)になる理由がわかりません

12 ki実数: y=x²³-kx²³+kx+1 6`thothe と極小値をもち、その差が41k) になる。Kの値を求めよ. y=3x²-2kx+k D/= k ²-3k > 0 4 :.k<0,or 3<k f(₁) = x²³-kx² + kxtl H ņ mm. TATA TATA TA TA TA TL TL T ODIOCICI f(x) = f(ß) = = |+(@)-t6₂) | T - [ f(x)] - Jefraidx - St = ²/² (1-2) ²³ 3 (1 3(x-d)(x-p) dx

英語の語いです 時計の進む/遅れるはfast/slowと書いてあるのに736がgainになるのはなぜですか？

774 I am afraid my watch is three minutes (). ebreid betroqmi ti gnilbred OHRER 4 quick 2 rapid 3 earlier 253303641 loqas (1) fast 2513 75be The tired boy is (o) asleep. (札幌大)

（4）なんですが、これって文構造どうなってるんですか？？Theboyの後に関係代名詞があり省略されていて、meetの後ろにも省略されているということなんでしょうか？？

J 4 The boy I want you to meet is Nick's brother. 5. The only thing that I am afraid of is spiders. 6. You can take any cake that you like. ED

教えてください

(1) You failed the test. You ( ) studied harder. 1 should (2) should have (3 must not (2) ( (3) You ( ) you like me to carry your bags ? (2) Can Shall 1 need not 3 May ) have brought your umbrella. It didn't rain. should (3) must not (4) It was a great party last night. You ( should may (5) He has not come here yet. I am afraid he ( 1 has to 3 may (6) Jiro ( ) the movie; he knew nothing 1 must have seen 2 can't see (3) (7) James has a toothache now. He ( (1) should go (3) would go (2) (3) (2) (4) ) have come. can may not about the story. may have seen (8)( (1) I ought to have been drunk more coffee. I feel sleepy. (2) I ought to have drunk more coffee. I feel sleepy. 3 I ought to not have drunk more coffee. I feel sleepy. 4 can (4) (10) ( ) (1) I may not say so, but I cannot remember. 2 I might say so, but I cannot remember. (3) I might have said so, but I cannot remember. Would ) have taken the wrong train. (4) cannot can would to the dentist yesterday. should have gone would have gone can't have seen (9) ( I'm not good at English. I should study it harder when I was young. I'm not good at English. I ought to have studied it harder when I was young. I'm not good at English. I need have studied it harder when I was young.

3の問題です。 関心がある、という動詞は進行形をとれないから状態動詞を考え、現在完了の形にするのが適切だと思ったのですが、答えは現在完了進行形のhas been paid toでした。 なぜ現在完了進行形をとれるのでしょうか。 また、関心がある、という動詞は進行形をと... 続きを読む

In our world, unimaginable 3.最近,地球温暖化に対する関心がはるかに薄いと思う。[pay] I'm afraid much less attention war 4. ダイエット中にパンやお米を食べ過ぎてはいけない。 [had, too] (福岡大 * global warming lately. (近畿大 hread or rice while vou are on a di

1問でも構いません教えてください🙇‍♀️

Every sentence has a mistake. Correct the mistake in each sentence. don't Fernando and Carlos doesn't have a car. Example: 1) Do you live in campus, with family, or with friends? 2) Susan doesn't like go to the library in the morning. 3) What time does class finishes in the afternoon? 4) I like to sing, but I can't a musical instrument. 5) I like to play ski in winter. 6) There aren't some coffee shops near here, I'm afraid. 7) Excuse me. Where's post office, please? 8) I like it here, but there are a lot of noise. 9) Turn left onto Main Street and it's to the left. 10) Hey! Is that your sunglasses over there? 11) How much this coffee, please? 12) I live behind of a large supermarket. Part V- Grammar (16 points) Write ONE word in the space to complete the sentences. 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) Go 14) Are 15) How 16) you work in Singapore? do they study there? My cousin My friend Helen "Do they study at university?" "No, they I like. My girlfriend study. He works. her homework in the library. play my guitar in the evening. There aren't How do I Is there a grocery store. aerobics, but she doesn't like yoga. he ski?" "No, he can't." there a good restaurant near the hotel? coffee shops in this street. to the City Hospital? here? ahead. It's next to the Italian coffee shop. shoes over there yours? is this pen? store is expensive. Let's go to another store.

文章を読み200字以内の日本語で要約して欲しいです

Ⅰ 以下の英語の文章を200字以内の日本語で要約しなさい。 ad a We often forget that an important part of "scientific" knowledge was built on the study of alchemy and other magical practices Alchemists were interested in changing certain metals into more valuable ones For example they tried to change lead into gold, However, they also wanted to produce medicines (that would allow people to live forever or cure any disease. The philosopher's stone is known to us today from the Harry Potter series of To novels and movies This magical stone was believed to have enormous powers and make you capable of doing and knowing pretty much everything. 可能にする *John Dee was an alchemist (who was particularly interested in the problem <of foretelling the future from the positions of the stars and other planets He was also an expert in ordinary mathematics and navigation, One of his most * ふつう fell important projects involyed, research (on a universal language (for 巻き込む communicating with angels!Dee was extremely successful He made a lot of money/had (extremely high status (in universities and government, and owned one of the best libraries in Europe/much of it dedicated to magic. 捧げる However towards the end of the sixteenth century/ideas about magic were changing. Many Christians in England were unhappy(that people were still キリスト教入 communicating with the spirit world which was one of the goals of sixteenth century magicians, As you know Japanese people welcome the spirits of ancestors into the house during the Bon festival European Christians were not happy (about that kind of thing, and they complained (about similar European festivals like Halloween) At the same time, many Christians were afraid that alchemists might be trying to steal God's power. As a result, there was a powerful movement to shut down magic once and for all. 禁止する ALE V n You may be familiar with the Japanese manga and anime series *Fullmetal 45% a Alchemist./The story takes place (in a fictional world in which alchemy continues to function as a normal part of scientific knowledge For example> the heroes (of the series are searching for the philosopher's stone,/and alchemists carry out important work(on behalf of the government/If our 利益 modern world had developed (in the same way as the world of Fullmetal Alchemist people like John Dee would probably have continued to do well. In fact, he lost his jobs and money and died in poverty. 1

(2)に、入る答えがhaveなんですけど、何故haveなんですか？？ have you？で検索してもよくわからなくて

2 Fill in the blanks with words and complete the conversa A: Hello, is this Mr. Brown? B: I'm afraid you have the A: I have lost my camera. B: Oh, [on the train] A: Would you like to sit down? B: (1) 口 (2) (3) you? How careless! , A: Would you mind opening the window? (4) B: not at all. number. I'd rather stand. 3 Write the same word in both blanks to complete the senten (1) (A) We off the bus in front of the station this m a long letter from Mary in London yesterd (B) I m (2) (A) They