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Mathematics Senior High

(2)に関してです。fxの極限が1+fxになったことで、任意のxで微分可能であるとなぜ言えるのかわからないです.. 微分可能だから極限を取って計算していくのは良いのですが結論何を言えば良いのかわからないです.,

(A)すべての実数xに対して, f(x)> -1 (B) f(0) =1 (C)すべての実数x, yに対して, f(x+y)= f(x)+f(y)+f(x)f(y) (1) f(0)を求めよ。 (2) 関数f(x)はすべてのxで微分可能であることを定義にしたがって示せ.また, f(x)をf(x)を用いて表せ (3) 関数g(x)を g(x)=log{1+f(x)} により定める. g'(x), f(x) をそれぞれ求め よ。 2-48 1)ス=0,-0より (c)を用りて (0+0)=+l0)+(0)+ド(0) 40(Ho) + 1)-0, tx)>-1 より(0)=0 これはH)が仕文のつして 微分可能でト0e) tec)+1て あることを示してリる Lt tec) ノAtは) gは)%=D X+ C 2かける 方f10)-2 t0)> = 0 13). すべての水で 仕文会可能 =>すべてのて Aim toch-ta) Harl イって C-0 4)20afI+ ta) イ+ Hx)- 0x 26 a ath e tけ Lim theth 切 tia) が成立していることをい) えればより。式反れてく、そして(A)~(c) を利用 を利利用 li He)t ti) #Ha)th} l} f1+ Hhar's 関数版だ大こaで連縮、 4la)=lim tx) ニ Jim x めか 数 +x) が =aで従久分可能 下限値ん存在するとぎに 依久 能2すム。そのときの極限 値え十(a)2する コ -tけ)Aim Hhi-t つ0 6-a フミリ |Ha)=)lin lath)-tral h→6. 1 Nal1 利用したい

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English Senior High

CROWN English Expression Ⅱ p.25下記の写真の解答を教えてください。お願いします。

m Exercises Lesson 10 形容詞副詞 Part Fill in each blank with a suitable word. 1彼は、栄光(honor) に満ちた人生を送った。 He lived a life ( ) honor. 2最近は、多くの若者が失業している。 A large ( 3何か間違ったことをしてしまったかもしれない。 viser who ) of young people are unemployed these days. encourages I may have done ( 4一生に一度の機会がやってきた。 ) wrong. once-in-a-lifetime ) comes a once-in-a-lifetime opportunity. = not likely to happen again 2 Put the words in parentheses in the correct order. 1彼は十分に勉強しなかったので、 試験に合格しなかった。 (didn't /enough / hard / he/ since / study), he wasn't successful in the test. 2都心にアパートを借りるには、 多額の金が必要だ。 ●downtown 「都心に」〈副り同) > You need(a/amount/ an apartment /large/ money / of / to rent) downtown. 3彼女のアドバイスは、私たち全員に大いに役に立った。 を準備している) Her advice was (all / help/much / of / to/us). 4食卓には、食べ物がほとんど残っていなかった。 句は名詞の後に置かれる。 There was (anything/ eat/ hardly /left/ to) on the table. Complete the sentences. ants in Tokyo. 1その金庫(safe) を開けるのは不可能だった。 rants in Tokyo. The safe 2経済に興味がないなら、その新聞は面白くないだろう。 That newspaper won't be 3なりたかった自分になるのに、 決して遅過ぎることはない。 (ジョージ·エリオット) in economics. に/24国 I ●what you might have been 「あなたがなっていたかもしれないもの」 to be what you might have been. [by George Eliot] しなところはない (多量の Put the Japanese sentences into English. 4 彼が突然、 学校を中退したのは驚きだった。 ●leave 「(学校を) 中退する」 2彼らは、 危うくその電車に乗り遅れるところだった。 ● 「危うく」→ 「ほとんど」 (多数の ③ 私たちのクラスのほとんど全員の生徒が、 その試験を受けた。 ④彼女は、 多くの困難 (difficulty) を乗り越えることができた。 ●get over~ 「~を乗り越える」 んど全ての 下線部分を言い換えて、 高校生活で最も驚いた経験について、 ペアで会話しましょう。 TRY A: What was your most surprising experience in high school? B:It happened during a school excursion. When I was about to eat lunch in a field, a kite suddenly flew down from the sky and took my lunch away. ●kite 「トビ」 25

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English Senior High

QuestionAとBの1について、私の回答で丸はもらえますか?教えていただきたいです 北大2017年の英作文の問題です。

Read the following passage. for my age. I leave home early and it takes about two hours on a crowded train to get to the office. I get Sunday off, but on the other days I'm usually in my office till nine o'clock, or even midnight on occasion. But I enjoy seeing the customers excited about our new products and services. Every August I take a 15 years. It's a secure job in a major company and I enjoy a relatively high salary six-day summer vacation, usually at my parents' place in Toyama. It's nice to Thave been working for a Japanese cell phone company in Tokyo for the last 2017年度(3] 32 a or the space of the countryside after my cramped apartment in the suburbs. However, I spend two days travelling there and back, and then it's straight back to work the next day. Last summer, however, I was able to take 10 days off in August and used the rare chance to take my wife on a foreign holiday by going to visit my old friend, Pierre, in Paris. He and I met at university in the US nearly 20 years ago when we were both international exchange students. We shared a love of tennis and S0on became good friends, and have stayed in touch. He now works as a supervisor in a post office in eastern Paris. It was lovely to see Pierre again and spend time in the spacious apartment he shares with his wife. I was very surprised to find that they were just back from a month-long summer vacation in southern France and Switzerland. Pierre told us that this is perfectly normal in his job, and couldn't believe his ears when I mentioned that my usual vacation is around a week and that I work 12 hours a day, six days a week. His usual workday, he said, was from 9:00 to 16:00. He wasn't joking ; he was back home by bicycle by 16:20 every day. He likes his job as the postal service fulfills a vital function in society by connecting people both aomestically andinternationally. On hearing his story, though, I began to reflect upon my own life and work. AmI working to live, or just living to work ? Answer questions A to C in English. You may use words and ideas from the Lext, but you must not copy complete sentences.

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English Senior High

解答をお願いしたいです。

1】会話文を完成させるのにもっとも適切と思われる文を下からそれぞれ選び、記号で答えなさい。 (1) Hiromi: Nancy, how was your chorus contest? o! onay Nancy: Our class won the first prize. IdgO G buo3 (e へ lt nob1) Hiromi: ( a) Congratulations! b) Ill miss you! nvsl d) Sorry to hear that. a vinonogmala gor T d blavs Ce c) Not at all. (2) Woman: Excuse me. Could you tell me the way to the hospital? へ damo (d Man: I'm sorry. ( orys t 0ob T(C) od a) I'ma stranger here myself. b) It's right in front of you.ob tew (e c) Turn right at the next corner. d) You can't miss it. mid orte iod vi (8) (3) Woman: This is Pat Kennedy. Can I speak with Ms. Yamada? anie Man: Im afraid she's out to lunch. Woman: OK. ( へ Tの ケ tami Man:im Certainly. t 9d irw bisow add 1evo lle dob lo mhr odT O a) Can I leave a message? b) Can you call me back? doss M c) Do you know when she will be back? d) May I have your name? dT S (4) Mom: Yumi, where are you? nug nesd ybeonls avsd enenoidibnoo tis ol danodaLA Yumi: I'm upstairs. Hurry up. We're leaving. p e Mom: Yumi: OK, mom. ( 0ye erstugaroo Inmoersg sol eubong vidavoot udo odmun oT a) Ill be right down. b) Imust be on my way. vatoabo to om c) Leave it to me. d) That's a great idea. 【2] 以下の英文をよく読み( 号で答えなさい。 1. Betty can't (, )の中に入れるのにもっとも適切と思われる単語を下からそれぞれ選び、記 mot vewi 0 2016M SL6M go9q a danol ) her dog. The dog doesn't follow her orders. 0 low v ad b. control C. twist 0 d. warn Tsdiw 20 bg a. arrest 2. Will you turn on the lights? It's too ( )in here, andI can't read the book. n a. crowded b. dark C. noisy 3o d. romantic aiteol dauod asv 3. Agood breakfast gives you ( ) for the day. qorq ne 100 900 anger ba9 b. attention C. enemy d. energy a. 2one becbre 4. This question is too difficult for me. It's ( ) for me to answer it. ddad wen C. impossible d. smart 0gr oals ade clever b. helpful a. 5. The elephant is a very big animal ( nio) has a long nose. a. it b. this C. what d. which Lardo ban sie bobigol ddoraoe ob 【3]下線部に入れるのにもっとも適切と思われるものを「Fからそれぞれ選び、記号で答えなさい。 this morning. る co bits (1) My cold is definitely a) badder c) worser 10gord d) worst b) worse

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