場合分けの範囲の分け方が違うんですけどこれでもいいですか？🙇‍♂️

2 関数の値の増加 減少 考え方 aの値が大きくなるにつれて定義域が拡大していく。 0SxSa (a>0)において, 関数 f(x)=x°-6x°+9x+2 の最大値を 212 最大·最小の応用(1) Check 381 例題 求めよ。 a 義域の両端での値と極大値を比較して場合分けを考える。 f(x)=x°-6x°+9x+2 より、 flx)=3x°-12x+9=3(x-1)(x-3) f(x)=0 とすると, 解答 x=1, 3 したがって、x20 における f(x)の増減表は次のように 区間が,0SxSa より,x20 の範囲 で考える。 なる。 x 0 1 3 F(x) 0 0 f(x) 極大 極小 2 2 f(x)=6 とおくと, (x-1)(x-4)=0 より, (i) 0<a<1 のとき グラフは右の図のようになる。 x=a のとき, 最大値 f(a)=α°-6a°+9a+2 x°-6x°+9x+2=6 極大値6と同じ値を とるときのxの値が 場合分けの境目とな x=1, 4 最大 6 る。 f(a) 2 100 1 34 (i) 1Sa<4 のとき Y4 最大 6 グラフは右の図のようになる. x=1 のとき,最大値 f(1)=6 第6 2 Ho 3/44 () a=4 のとき グラフは右の図のようになる。 x=1, 4 のとき, 最大値 f(1)=/(4)=6 最大 (は(i)とまとめて 1Sa<4 のときとし 6| て、(i)に含めてもよ 2 a=4 い。 10 1 34 x f(a) (iv) a>4 のとき グラフは右の図のようになる。 x=a のとき,最大値 f(a)=a°-6a°+9a+2 よって,(i)~(v)より, 最大値は, 0<a<1, 4<a のとき, 1Sa<4 のとき, 最大 2。 a 01 34 a°-6a°+9a+2 6 (i)と(岡をまとめた。 0SxSa (a>0)において、関数 f(x)=x-3x° の最大値を求めよ 1o K 6 K

4と5が分かりません 4はquest to doだと思うのですがdoのところが分かりません 5はし始めるだと思うのですが分かりません

5. We will begin to paint the house as soon as the weather permits. o aid brieo C Fill in the blanks to rephrase the sentences. 1o boron some 1. A good idea occurred to me. )upon a good idea. 2. We can see his courage through all his actions. → His courage ( )all his actions. 3. I have been looking for the aim of my life for a long time. →I have been ( )out the aim of my life for a long time. 4. People cooperated for women's rights. → People stood ( ) to ( ) for women's rights. 5. We will begin to paint the house as soon as the weather permit。 We will (

「b」に入るのがアなのはわかるのですが「c」に入るのがイなのがわからないです。エでもよいと思うのですがどうしてダメなのか教えてください！

Mr. Baker: Today, we will talk about living with robots. Asami, what do think? you Asami:I think robots make our lives better because Dthey help us in many ways. Some robots can put together products, like cars or cameras. 【a】 Kaito: As Asami says, the robots working for people are amazing. But, robots are so efficient that they're taking people's jobs away. 【b】 Meg:Some robots work in hospitals and homes. 【c】 The number of elderly people has been increasing. Future robots can help (2)them go shopping or take a bath. Josh: That's true, but I'm a little afraid of living with robots. If they get out of control, we don't know what they'll do. Robots are machines. 【d】 Mr. Baker: Thank you everyone. Let's keep thinking about the best way tolive with robots. * put together : 組み立てる in part: ある程度 efficient : 効率のよい, 能率的な take .. away : ~を奪う elderly people : お年寄り out of control: 制御きれなくむ

このようにして解いたのてすがなぜx＝−2分の3になるのか教えてください

[2.c+52 4.c-+8 |3c-6三x-9

285について なんで⓵が正解なのかわかりません！そもそも激しい苦痛に直面して、彼女はなんとかユーモアをたもったって意味不明です。 ②や③ではだめなんですか？ 286について ⓵でもニュース(の情報)に加えて、多くの人がダメージを受けた(ことが判明した)。ではダメなんです... Read More

(3 as a re: ) great hardship, she managed to keep her sense of humor. D2 In charge of 2 285.( O In the face of 3 At the merey of a の On behalf of (中央大) ) the morning TV news, many farms were damaged by the rain ① In addition to ③ According to 02286.( 22 In contrast to 頻出 Aの Owing to のたe ) his wealth he has a great deal of intelligence. (名古屋女子大二 2 287.( 東田 A0 All but X2 For all センター 3 In addition to の As much as (国士舘大)

英検2級、添削お願いします。 Today,some people buy products that are good for the environment.Do you think buying such products will become more commo... Read More

1 think that buying such products will become mere Co mpmon in the fature I have tw0 reasons . 17 first , I think that shou ld pretect envirenment 25 For example s ieduce prastic gerbege 3 we have to う6 for the Earth So, 1 that 1 think not prastic prodects will be 4sed by fotere.」 Second, technlogy to produce such products will a lot of people in the 54 66 70 e improve d in the foature So, I think that 76 good prodact ter environment wil increase For these reasons 1 think thet products bay ing such will become more Common 89

英検の問題で分からないところがあったので教えてください🙇‍♀️ 青線を引いたところの和訳をお願いしたいです。 翻訳アプリを使ってもよくわかりませんでした。 よろしくお願いします。

Masters of the Desert “Bedouin” is a name given to some of the people who live in North Africa and the Middle East. Unlike most people, many Bedouins do not ( 24 Instead, they are nomads, which means that they are always moving about. They walk around the hot deserts of countries like Egypt and Israel, leading their camels and sheep to gras and water. Life in the desert is not easy, but over thousands of years, Bedouins have developed unique skills to help them survive. Some people estimate that there are around 20 million Bedouins in the world today. However, ( 25 ). Because many of them are traveling, it is impossible to count them all. In recent years, however, many Bedouins have given up their traditional way of life. This is because the amount of land controlled by governments has increased, which has made it harder for the Bedouins to travel freely. Some of them now live in urban areas and have regular jobs, such as driving taxis and working in restaurants. Some Bedouins have found work with the Israeli army as trackers. A tracker is a person who follows people by using signs left on the ground, such as the marks left by feet or tires. Trackers must know their environment well and be quick to notice anything unusual. ( 26 ), with their desert survival skills, Bedouins are excellent trackers. About 1,600 of them are now serving in the Israeli army, and their ability to notice dangers along Israel's borders is helping to protect the countily. 1 sleep lying down 2 live in one place 3 eat meat or fish 4 use paper money 1 their exact numbers are unknown 2 there were many more in the past 3 the groups have no government 4 they all meet once every year 1 Naturally 2 Occasionally 3 Secondly 4 Equally

分詞構文です。 合ってますか？🥺

=WRITING EXERCISES ting Activity the blanks to complete the paraphrases. 1. Becadse I hadn't checked for the news, I didn't know about the accident. Not. know about the accident. )( havings)( checked ) for the news, I didn't

このような問題を解けるようにするにはどうやって勉強したほうがいいですか？

9. 渋滞があったにも関わらず、私はなんとか時間通りにオフ In spite of the ( ) traffic. I managed to get to the ofice in time. の little の much 2 light 3 heavy 10. 私の夫は普段朝ご飯を食べませんし、私も食べません。 My husband usually doesn't have breakfast, and ( ). 3 neither do I の either so I ) so am I 2 me, too 11. 私が生まれ育った街は日本の東京です。 The city ( )I was born and raised in is Tokyo in Japan. 3 which の whereas 0 where 2 what 12. 離れたところから見れば、それは鹿のように見える。 ( )from a distance, it looks like a deer. O Seeing honde losdi S ④ To be seen ② Seen 3 Having seen 13.彼らのコンサートに 300人もの人が集まった。 ( )three hundred people came to their concert. 0 As many as 2 As much as ③ More than ④ Much more than 14.何かを得るためには、何かを与えなければならない。 ( )get something, you have to give something. 0 In contrast to 2 According to In relation to の In order to 15.彼女が訪ねてきたときに、私は出かけようとしていた。 go out when she called o me. 0 was willing to 2 was about to 3 was used to の was opposed to 16. もし私があなたなら、彼女に話しかけるだろうに。 ( )you, I would talk to her. O IfI'm in 2 IfI were in 3 IfI were for の Were I 2 次の下線部の誤りを訂正したものを、①~④から選び番号で答えなさい。 1. ジェリーは来週、 歯科医に歯を診てもらうつもりです

なぜその答えになるかを教えて欲しいです簡単にで大丈夫です 時制の単元です 四択のうち何と何が迷いやすいとかがあればその違いも教えて欲しいです

T.時制 『I 6. We invited some guests to dinner last night. We( ) the table when they arrived. →002 O have set 2 sets 3 are setting ④ were setting 〈東京工芸大) 7. Our vacation in New Zealand has come to an end. At this time tomorrow, ( ) over the Pacific. 今002 O we'll be flying ② we flew we were flying ④we'll have been flying <授南大) 011 8. This emergency medical kit ( ) several types of medicine. 今003 中 O is containing 2was containing ③ contains の contain 〈松山大) 9. She( ) the flower arrangement club. →003 O belongs の belongs to 3is belonging の is belonging to く共立女子大) ロ 10. We( )good friends since we met at the conference two years ago. O have been 2 had been (3) were would be (東邦大) Iwi ロ 11. Daddy is working overtime again, so by the time he gets home, dinner ( ) cold! O gets 2got 3is getting の will have gotten 〈南山大)→004 12. I( ) Yokohama three times before I was twenty years old. O had visited 2 have visited 004 ) ha was visited の was being visited