重積分の証明問題についてです。 1枚目の画像の問題を、ヒントを基に考えてみたのですが、2枚目の画像の状態で詰んでいます。 「D は弧状連結なので、･･･ 結ぶことができる。」 の部分をどう利用すれば示したい式に落とし込めるかが分からないです。 分かる方は回答お願いします。

問題 3.2. DCR? を面積確定な有界閉集合で弧状連結なものとする.D上の(有界)連続関数 f:D→R に対し,点PED が存在し以下が成立する事を示せ。 T(,9) dady = f(P) ||1 dady. 高SJof(x,9) dardy < (ヒント:f は連続なので最小値m, 最大値 M が得られ, m< M となる。また, D は弧状連結なので, m, M の値をとる点はD内の曲線で結ぶことが できる。)

教えていただきたいです。よろしくお願いいたします。

B 下の接続詞を使って、 Kaiに関する文章を完成させましょう。 and because but if so Kai is outgoing, positive, serious ambitious, 2 also stubborn. A big company is best for him he can meet new people, and he has more opportunities for advancement. He thinks he can he works on a team. He likes 4 develop a better product immediate feedback, he prefers face-to-face communication. 5 eupsy

TOEICの文法問題です。 解説のところの″述語動詞を修飾するのは副詞なので、″の意味がよく分かりません。 解説お願いしたいです。

14. Ms. Kelly was able to solve the issues with the new software after consulting Mr. Lee in the technical support department. (A) easily (B) easy (C) eased (D) ease の空 文 会る。 合 代中

英検準一級の英作文の添削をお願いします。理由が一つしか思いつかなかったので短いですが、ここだけ添削していただきたいです。見にくいところがあれば言ってください。

No. Date Topici Do you think that rich Countries should do more to help poor countries develop? I think that rich countrieshould do more to help poor Countries develop. I have two reasons to suport my opinion in terms of inequality and economic grouth Ficst, rich countries should help por Countries to be equal level. For evample, they teoch science Technalogy, donate and bild public faciliy such as a hospital and school. IH por Countries and t is important to decrease the nunber of gapof living level. 生活水準の差

赤線で引いてる部分がうまく訳せません。どなたか説明お願いいたします。よろしくお願いいたします。

) change) In the middle of the next ( 4 ), an 18.6-year lunar cycle will flip into a れた Aの発 phase that amplifies ( 5 ). It's called the moon's “wobble.” The ( 6 ), along with [ an ] ( 7 )slimate-driven rise in 年 た げnてい、 phenome non epeuéd sea levels by then, will mean that some coastal cities will see (_8 ) seasons lasting a month or longer. worning Treanent flood Climate (4)_decade tilec

英検準一級の英作文の添削をお願いします。見にくいところがあれば言ってください。

Date No. Topic: These days more peple will do so in the' tuture? Some pegple buy things. on the Intermat.Do you think I think that motre people will buy things . on the Internet 1r T have two reasons to support my opinion in tenms of price |2 and technolgy 2 Fist, we can buy things on the Intermet that is cheaper than buying them at shops, Some Intemet shops' deliver fee 10 is free. It is goのd tor us to get a good deal of products. 14 Also, peaple can keep thair rmoney. 6 Second, peaple do nat have to go shopping. at shops. 1o f there are people who are buy to buy things what they wast, 15 they con buy them any winere using, their internet or smarphene 10 I think eldery pegple get products eaily. For these reasens, buying things on the Internet will be 15 more necesiory in the future (121uerds) ニ

至急、文法の間違いがないかチェックをお願いしたいです！！！！英文は高校生レベルです。 ①Q. What do you want to do for African countries? アフリカの国々に何をしてあげたいですか？ A. I want to donate m... Read More

この問題の解き方を教えて欲しいです、よろしくお願い致します🤲

* Part 1: A derivative computation using the chain rule Suppose F(x) is any function that is differentiable for all real numbers x. Evaluate the following derivative. d (F(x)) = dx Enter the derivative of F(x) as F'(x) using prime notation. Your answer should be in terms of F' and other functions of the variable x.

英検準一級の英作文の添削をお願いします。見にくいところがあれば言ってください。

Date No. Topic: Do you think thatJapan, is a good Countey tor peagple with' children to live 'in? I do not think that Japan is a god Coanty fr peaple with children to live in. I have two reasons to support my opinion in Terms of Cost and lacking of doy care. Fist parents need much money to raise their childien. For exomple, there are meal_Costs and school tuition. 食安 They high school's Cast are free in Japan, baut high school ondumivecity are higher then we expect. Elemertay sechol and jurice Cost a lot of maney Itis had fr pareats to pay. Seund, the number of bath parents wmerting is increase there doys. 天働き So they have no time for dey caren If parents use a kindergaden, they Could not ue it because many kindergardens Cannat acept. There is he adult to see children. For these reasns, it is not good for people with children to lie in Jopon. (142 wordr)

英検準一級の英作文の添削をして頂きたいです。見にくいところがあれば言ってください。よろしくお願いします。

Date No. Topic: Is the recent increase in the nigyber of penple changing jobs in Japan a pasitive development Y I de not think that the recent increase in the. number of people 15 (7 changingjobs in Japon is a pasitive develepnet, I have reasons to support my opinion in terms of effect on the economy and unenplymoant Fict if the number of peaple changing jobs increases, Some Companies will in Jopan. Eflect on the economy will larger than before. bankrupt. It would be a serious problem Second, it is dificult for them to change their jobs becouse theyshould remenber new job Companies do not have enough time to teach working and people changing jo would be tired to remember. I think companies Could not get s. adventagpe For these reasons, the number of people changing jobs in Japan is a negative develapmat. (123 words)