【高校2年生 数B ベクトル】 （2）で印をつけてるところの3がどこからきたのかわかりません( т т )教えていただきたいです😭😭

□ 146 次の値を求めよ。ただし, a, 6 のなす角を0とする。 教p.68 問35 (1)|a| = 1,6=4,a6=2のとき, la-26|の値 |0| = 2,060°のとき,|a+36|の値 の値 (2)* |a| = 3, (3)* |a| = 2,16| = 4,3a+26=2のとき,

簡単な質問かもしれないですが、、、、、、 They say that S+VのVが現在完了形の時は S is said to have done(上記の受動態) になるのはどうしてでしょうか？ S is said to do ではない？ (tohavedoneが分から... Read More

左の文章の内容に合うものを右から1つ選ぶ問題です 教えてください🙏

12 Problems of communication affect us all in many aspects of It is quite easy to be day-to-day living, and can cause serious trouble. misunderstood or to speak vaguely. 3 An example of difficult communication is in the doctor-patient relationship, where most patients find it very difficult to get the right words to describe their problems. 4 Even fairly common terms, like "pain", are ambiguous, and used differently by different patients. The problem affects the doctor too, who often has difficulty explaining the medical situation in words which the patient will understand.

□3と□4の答えを教えてください。 お願いします。

同じ 3 日本語に合うように,( )に適切な語を入れなさい。 AB vel ad bavou boxlaw Secause in 1) 妹はけがをした犬を見つけました。 2) My sister found an ( ) ( 2) 私たちは向こうでサッカーをしている女の子を知りません。 We don't know the ( :) ( 3) ジョンは子どもたちに囲まれて座っていました。 John sat( 4) 水を出したままにしておいてください。 Please( ) the water ( POI 20303 13 ) by the children. ). hiyon bollow 1- soccer over there.gaisa) 4 日本語に合うように,( )内の語句を並べかえて英文を完成させなさい。 1) 先生と話している女の人はアメリカ出身です。 ((with / is / the woman / our teacher / from / talking) the U.S. 2) 兄はたいていそれらの窓にかぎをかけておきます。 My brother (the windows/keeps/usually/locked). My brother ABU the U.S. 分詞 1 49

教えてください！！

24. My decision to retire did not have ( 1 anything 2 something 3 everything ) at all to do with my health. →177 nothing (*) this machine. →177 25. Something is the matter ( 1 at 2 in 3 of 4 with (4) 26. "Did you all have a nice time?" "Yes, we enjoyed ( 1 a good time 2 all 3 ourselves us (I#X) 27. Because of his business problems, John is always 1 above 2 beneath 3 beside toward (EX) )." →178 himself with worry. →178

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12. I didn't like () of the two pictures. →171 1 other 2 either 3 neither 4 another (i) 13. I wanted two tickets, but there were ( 1 no 2 none 3 any 4 some (1) ) left. → 172 14. The Olympic Games are held ( ) four years. →173 1 every 2 other 3 among 4 between (RX) 15. She has a part-time job. She has to go to work ( 1 every other one other 3 each other every two (R) →173 16. It's very busy. ( ) the seats are reserved today. →174 1 Most of all 2 Almost of 3 Almost all 4 The most of (**) ) day: Tuesday, Thursday and Saturday. 17. Nowadays, ( ) Japanese people get much of their daily information from television. 1 almost the 2 most the 3 most 4 most of (*) →174 18. There are two university students in our book club. One is majoring in English literature, and ( ) is majoring in Chinese literature. →175 1 another 2 other 3 the other 4 others 〈愛知大 > 20. Don't speak ill of ( 1 the other 2 other 3 19. Tom has four children. One is a boy, and ( ) are girls. →175 1 another 2 others 3 the other the others (L) ) behind their backs. →175 some other 4 others (*) 21. It is one thing to want to climb Mt. Everest, but it is ( 1 another 2 other 3 the other 4 some other (*) 22. I really want to stay here for ( ) two weeks. →175 1 another 2 others 3 other 4 otherwise (**) 23. "It doesn't often happen." "No, I suppose ( 1 so 2 that 3 too 4 not (E) )." →176 thing to do it. →175

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) at all to do with my health. →177 24. My decision to retire did not have ( ① anything ② something ③ everything ④ nothing 〈杏林大 > this machine. → 177 25. Something is the matter ① at ② in ③ of ④ with 〈富山大 > 26. “Did you all have a nice time?” “Yes, we enjoyed ( ① a good time ② all ③ ourselves ④ us <湘南工科大〉 27. Because of his business problems, John is always ( ① above ② beneath ③ beside ④ toward 〈東京理科大〉 )." →178 ) himself with worry. →178 ②2 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。 <札幌学院 28. Gasoline taxes in the United States Dare ②lower than ③that ④ in Europe. 大〉 169 29. I had ②no idea that the kitten and the puppy were ③ fond of each ④ another. →173 〈北里大〉 30. Irealized ⓘmost my money ②had been spent, and the trip wasn't ③even half ④ over. 〈神奈川大〉 174 31. Jodie recommended that Nancy ②buy several ③books on World War II, but she wanted ④ neither of them. 〈近畿大〉 172 3 次の日本文の意味になるように ( 内の語または語句を並べかえて適切な英文を作りなさい。 32. ここで車なしで生活することはキツイとわかった。 →168 Ⅰ (to / live / difficult/ without/ here/ found/it) acar. 〈東洋大〉 33. 人々は、お互いに自分の人生に起こった不思議な出来事について語るのが好きだ。 →173 People (abouteach/events/enjoy/other/that/telling/mysterious) have happened to them. 摂南大〉

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12. I didn't like () of the two pictures. →171 1 other 2 either 3 neither 4 another (i) 13. I wanted two tickets, but there were ( 1 no 2 none 3 any some (1) 14. The Olympic Games are held ( ) four years. →173 1 every 2 other 3 among 4 between (EN) 15. She has a part-time job. She has to go to work ( 1 every other one other 3 each other 4 every two (RE) →173 ) left. →172 16. It's very busy. ( ) the seats are reserved today. →174 Most of all 2 Almost of 3 Almost all 4 The most of (*) ) day: Tuesday, Thursday and Saturday. 17. Nowadays, ( ) Japanese people get much of their daily information from television. 1 almost the 2 most the 3 most 4 most of (*) →174 1 another 2 other 3 the other 4 others 18. There are two university students in our book club. One is majoring in English literature, and ( ) is majoring in Chinese literature. →175 20. Don't speak ill of ( 1 the other 2 other 3 () 19. Tom has four children. One is a boy, and ( ) are girls. 17 1 another 2 others 3 the other the others (LX) ) behind their backs. →175 some other 4 others (*) 21. It is one thing to want to climb Mt. Everest, but it is ( 1 another 2 other 3 the other 4 some other (*) 22. I really want to stay here for ( ) two weeks. →175 1 another 2 others 3 other 4 otherwise (**) 23. "It doesn't often happen." "No, I suppose ( )." →176 1 so 2 that 3 too 4 not (E) ) thing to do it. →175

問題番号は2です。 なぜ have registeredなのでしょうか？ registersだけでは間違いでしょうか？ なぜ latestなのでしょうか newでは間違いでしょうか？

UNIT 1 (p. 10) 1. 今われわれが直面している問題の1つは地球 温暖化だ . 2. ユーザー登録済みであれば, 最新バージョン をご利用いただけます. now 1. One of the problems we are facing is global warming. 2. If you have registered as a user, you can use the latest version.

この問題って、f(0),f(2)>0 を使って解いてもいいんでしょうか？ 答えはあってました。 f(x)=x^2-2ax+3a

54 T ある変 基本例題 92 0≦x≦2の範囲において、 常に x²-2ax+3a> 0 が成り立つように、 の値の範囲を定めよ。 CHART & THINKING x 2の係数は正。 「常に x-2ax+3>0 が成り立つ」 ことから, 図1のように単にD<0 とするのは間 違い! 0x2の範囲」 となっているから, D>0 で図2のような場合も起こりうる。 「ある変域でf(x) > 0 (変域内の最小値)>0｣ 図1 と考えてみよう。 文字を含む2次関数の最小値は どのように求めればよかっただろうか。 → p. 114 基本例題 64 参照。 解答 f(x)=x2-2ax+3a とする。 求める条件は、0≦x≦2の範囲における関数 y=f(x) の最 小値が正であることである。 f(x)=(x-a)^-a²+3a であるから, y=f(x) のグラフは 下に凸の放物線で, その軸は直線 x =α である。 [1] α<0 のとき f(x) は x=0 で最小となる。 よって f(0)=3a>0 Dne [2] 0≦a≦2のとき f(x) は x=α で最小となる。 よって f(a)=-a²+3a> 0 すなわち これを解くと, a (a-3) < 0 から 0<a<3 これと 0≦a≦2の共通範囲は [3] 2 <a のとき 0<a≦2 f(x)はx=2で最小となる。 f(2)=4-a>0 よって これと 2 <α の共通範囲は 2<a<4 求めるαの値の範囲は①と② を合わせて 0<a<4 これは α<0 を満たさない。 ****** ゆえに (0fp) 025+zd a²-3a<0 ISATION ①0万不 MEMO (2) 01 20 x 02 定数 ( 図2 [1] 軸が変域の左外 02% [2] 軸が変域の内部 0a2 [3] 軸が変域の右外 Li V 02 基 Z C