1番が答えなのですが、なぜ1番なのか、なぜ他の選択肢ではだめなのか教えてください。

3. on the point of 4. bound to (d) Long ago, it was common to make a drink of hot chocolate ( powder of hot peppers. 1. mixed with 3. in combination of 2. together 4. with adding ) the

(2)についてです。 θ＋4分のπは理解できるんですけど、θ-4分のπが理解できません。 -4分のπ-θではないのでしょうか？(；；)

例題 142 2直線のなす角の関 (1) 2直線y=1/2x+3y=2x-4のなす角(≧0≦号) を求めよ。 mia 直線 2y-x-2=0 と の角をなす直線ℓの傾きαの値を求めよ｡ 考え方 直線を平行移動しても傾きは変わらないので,原点を通y=mix+m るように平行移動する. 直線y=mx+n, y=m2x+nz 01-02- とx軸の正の向きとのなす角をそれぞれ01, 02 (02/02) とすると,2直線のなす角0は0=02-02 である。 解答 (1) y= v=1/13x+3 x+3 ...... ① y=2x-4.② とおく。 2直線① ② とx軸の 正の向きのなす角をそれぞれ, 01, O2 とすると, 01 002 tan0₁=₁ ania 傾き!! =1/13. tan02=2 π 4 右の図より、0<br << ni は, 02-01 である. tan (02-01)= であるから, 2直線のなす角 π tan (0+1)- よって, 92</7/2 880 a=3, (1) tan O2-tan 01 1 + tan Otan O1 3 1千tan Otan 02-01 yy=2x/ 3 π 4 π 4 10 2. O2 /2 0₁ 1 3 3 COL よって,0<b2-0 より, 0=0₂-0₁=T Aniebuia &2020 203 (8) (2) 直線 2y-x-2=0 と直線 x=kとのなす角は - π 21 EI 4 11 ±1 2 y= SI 0 1 32 {_=1 1+2.ria=(8+2 17/1/2-1 1千 x XC ではないから, x=kは不適 CONTR 直線2y-x-2=0 とx軸の正の向きのなす角を0とすると,tan0= したがって,直線lの傾きは, YA tan 0±tan (複号同順) 2.48000 ** 0₁ 02R x軸に平行な直 y=mx- 直線の傾き 原点を通るよう 行移動する. 2直線のなす角 角で考える. x=45° 2直線 y=mix+n1, y=mzx+n2の 角を0とすると, tan0= m₁-m 1+mim 2y-x-2 10 π 4 π 4 TEET To y

この空欄に共通語を入れないといけないんですけど分からないのでよろしければ全部じゃなくても良いので手伝っていただきたいです💦

(3) (a) We must keep an ( ) on the political situation. (b) She hit him hard and gave him a black ( ). (4) (a) This is going to cost you a good ( ) of money. (b) In this African town, there are many merchants who ) in diamonds. (5) (a) That politician always takes a strong () on difficult social issues (b) He was so shocked by the news that he could hardly ( ) up. (6) (a) Why are you sitting so far ( ) from us? Come over here and join us. (b) The two brothers look so much alike that it is difficult to tell them ( ). (c) The dog has pulled the newspaper ( ) again! (d) I don't like to mix business with pleasure, but try to keep the two things firmly ( ). (8) (a) In my ( ) you should try the exam again. (b) The ( uldn't got (7) (a) () all his campaigning, he couldn't get enough votes to win. (b) It might be better for us to make allowance ( ) his inexperience because he is a newcomer. (9) (a) You will be sure to like him, ( ) you talk with him. (b) He writes a letter ( ) in a while, but not so often. The earth goes around the sun ( ) a year of 251) (10) (a) A( ) from the mountain top was spectacular. ) is a place where you can get water. (b) The doctor said that he would be ( (11) (a) Will you ( 15 (c) He has knowledge and experience as ( ). ) if he took this medicine. ) after the children while I'm out? in the long run 結局は (b) ( ) in the mirror before you drive off

授業で日本の伝統等について発表します 英文は書けたのですが合っているか不安です 得意な方いましたら確認して下さると助かります🙏 日本語訳 刀は日本の剣です。 それは平安時代から作られていて、今は美術品として色んなメディアミックスを通じて国内だけでなく世界で人気です

My topic is Karan a Katana is Japanese sword. It has been made since the Heian but popular not on not only in Japan through various media mixes period and now also in the world as works of art

仮分数を帯分数にするときの方法を教えて下さい。

⑶の式と⑸の式を使って、Nを出したいのですが、途中式が分からなくて困っています。 お願いします

●(3) つり) •N²4 Marino = 19 (₂0 (5) 外から回る MB = Alsin@ - N~' CO Mm.g. cose "M+M (sine - u'Corse) sine の答え say ip (At. (^= Mixg (1) うんどろ m2 = mpore finding - Fitl -> f Nsive - 'Nie M 0/5) B: Nt m (Naine - ~Nove) sine - nga a = N M = masine - ( N'm sne - N'yon sind we

マーカーの部分のSVOの分け方と訳し方が分かりません😢教えてください。

around the country The company it was bad business to continue avoiding the use of the powe television. In defense of his company's maneuver, the general sales manager said, "There are a lot worse things than alcohol ads on TV." Many people found this incident very 1 ) very selfish. Incidents such as this illustrate the disturbing and the company's ( shift away from social responsibility toward marketing. One major brewer* found beer sales flat in 1998. Its typical target audience was To increase sales, the brewer decided

Ms. Thomas is the author of Small Business Survival, a book ------- marketing strategies that help small businesses increase income. この文な... 続きを読む

O0 ×3? 履歴> カテゴリ: 動詞の変化? Ms. Thomas is the author of Small Business Survival, a book. marketing strategies that help small businesses increase income. ------- 2 (A) outline (8%) (B) outlining (38%) (C) outlined (24%) (D) outlines (30%) 0420 74. 正解 (B) 文頭からカンマまでで文が成立。 以降は 「本」の内容 を補足説明している。 空所に現在分詞の (B)outlining (~を説明する) を補えば、 目的語 marketing strategies を伴い、 a book を修飾する形容詞句が完 成する。過去分詞 (C) は目的語を伴わない。 動詞の (D) だとカンマ以降が節となってしまうが、カンマで 節同士をつなぐことはできないので不可。 訳 Thomas さんは、 中小企業の収入増に役立つマー ケティング戦略をまとめた本、 『Small Business Survival』の著者である。 次へ

加法定理です！ 基本165の問題が分からないことがあります。 αは鋭角であるから、と答えにあるのですが、鋭角と鈍角はどうやって見分けるのでしょうか？また、Sinα=‪√‬1-cos２乗αの式はどの公式をつかっているのでしょうか？ お願いしますm(_ _)m

27 加法定理 ① 正弦余弦の加法定理 ① sin (a+β)=sinacosβ+cosasin β ② sin (a-β)=sinacosβ-cos asin β 3 cos (a+8)=cos a cos B-sinasinß ④ cos (a-β)=cosacosβ+sinasin β 正接の加法定理 tana + tan B tan(a+8)=7 1-tanatan B 2直線のなす鋭角 x軸の正の部分から2直線y=mix ...... 図のようにα, βとすると 2直線①、②のなす角0 (0<0<^) [1] 0<α-B <1のとき 0=a-B 13 sin 1x, cos YA a (2) sing= 0 B 13 127, 4 ② tan (α-β)= π, ・①,y=mzx..... tang=m, tanβ=mz = 基本 163 加法定理を用いて, sin 165°, cos 165°tan 165°の値を求めよ。 13 π 3 19 基本 164 1/12=1/7/8/1/1 + 3 5 -π+- 3 12' 4 6 ミル tana-tan 1+tan atan B は次のようになる。 [2] <a-Bのとき 0=-(α-B) YA A 19 tan 12 の値を求めよ。 ITEM a B まで測った角を x であることを用いて, 基本 165αが鋭角, βが鈍角であるとき、次の値を求めよ。 (1) cos a=- sinβ=1のとき sin(a+B), cos(a+B) 1 3' 12 =1/13, cosB=- β= のとき sin(α-β), cos(α-B) 13 (3) tana=5, tanß=-3 M¿‡ tan(a+ß), tan (α-ß)

34〜41の答えを教えてください。

A long email from Japan arrived in the computer of Bill Perkins, who worked in an office in London. The message was from a company in Tokyo that Bill's company had just sent a large order to. Bill read it once and then once (注1) named Steve to read. Steve read it and also looked again, looked puzzled, and then gave it to a colleague" confused. The letter began by praising the English company. () It then mentioned that some goods had been damaged during shipping (2) to Japan, and then the letter happily 34 (v) This kind of letter may work well in Japan, 35 it is not very successful as international communication. The letter 36 the reader to read between the lines to understand the problem and to sympathize with the company. (5) Of course, it also wanted Bill and Steve's company to rectify the trouble. But the letter did not spell out (4) that message very 37 . So Bill and Steve were thinking of just ignoring it. But then they received more correspondence from the Japanese company, this time with a specific request for action. It was an hour later when a second letter arrived that contained 38 for the first confusing letter. It also stated the intent of the Japanese company concerning the damaged goods. They wanted the replacement items shipped as soon (25) would foot as possible with no charges. Bill and Steve were happy once again because their insurance company the bill 16), and the goods would arrive in about ten days. (2) The Japanese company didn't follow the standard international business pattern in its communication. But the English company was 39 , too, because they hadn't realized that there was a deeper meaning to the letter. Bill and Steve had only looked at the communication's surface. It seems to me that both sides could benefit from a seminar on international understanding. (1) colleague: (2) shipping: (**) * (注3) rectify: 対応する (注4) spell out : 詳しく述べる (5) insurance company (注6) foot the bill: 費用を払う t (Terry O'Brien et al. Simply Reading, Simply Writing NAN'UN-DO) 6