OQ＝PQになるのは何故ですか？

240 第3章 図形と計量 例題 141 球と接する立体 右図のように、 底面の一辺が長さ2の正方形,側面の ○ 4つの三角形がすべて二等辺三角形である正四角錐 HO OABCD がある.また, 球 S はこの正四角錐の5つの 面と接し,球S2 はこの正四角錐の4つの面と球Sに 接している. 球S と S2 の半径の比が2:1のとき, 正四角錐 OABCD の高さを求めよ. 若半 0 B 考え方 辺AD,BCの中点をそれぞれ M, N とし, 平面 OMN で切った切断面を考える. anoronz ■解答 球 S, S2 の中心をそれぞれP Q とし 半径をそれぞれ1, 2 とする Focus AD, BCの中点をそれぞれ M, )また,辺 34 Nとし, この正四角錐 OABCD を平面 OMN で切ったときの切断面を考え, 球S1, S2 と辺OM の接点をそれぞれK, Lとし, 球 S1 と辺 MN の接点をHとする。 球 Si と S2 の半径の比は2:1より, r₁=2r₂ TE M OQ ここで,0°<0<90°より, cos0 >0 だから, sin O 1 したがって cos 2√2 HO tan0= よって, また, OPKSOQL であり, 相似比は2:1 よって, 0Q=PQ=n+1=2r+r2=3/2(金) また,∠QOL=0 とおくと, OH=- また, MH=1/12MN=121AB=1 MH tan 0 10 1 = 2√2 HO 2√2 12 L Kri = Q sine=QL r2_1 312 3 P H COS = 小中心 3 -2√2 N 2√2 3 M H K **** 0 S₁ 空間図形については、切断面で考える 切断をする際は,どの平面で切ると楽になるかを考える Q ri sin20+cos20=1 tan 0= MH OH

この英文は合っていますか？おかしいところがあれば直してください🙇‍♂️

Because of high tax rate, foods price are Norway. very high in Look my e-mails

英語のリーディングの問題を、S V O C 、（） 、→ などを書いていつも訳しています ՞ ՞ 文の構造をしっかり理解しようと思ってしているのですが、テストでだと時間的にやめた方が良いですか ?? 慣れてきたのか最初よりは書き込みも早くなったとは感じますが … ... 続きを読む

a a high school student in Japan> He is from Australia. He finds two of his friends, Hikari a (+"=> in their classroom and talks to them. of our S : Hi, Hikari, Takuma. What are you looking at? : Hi, John. We are looking at *results of a *survey about the school trip) O ↑ In the survey, 243 first-grade students(at our high school were asked the question: "Where you want to go on the school trip?" Look at this *graph. V : Oh, the most popular place is Okinawa. I understand that because we can swim in C beautiful sea and its culture is very interesting. Have you ever been to Okinawa? (1127 くどこ : Yes. I went there on an *elementary school trip and a family trip last year. My best me O s in Okinawa is *snorkeling in the sea. There were a lot of beautiful fish in the water, and S V excited when I saw them. I had a really good time during each of the trips. LEES くりつ) : I went there on the school trip when I was a second-grade student (at junior high s 12x During the trip, we didn't stay at a hotel. <+1>> : Oh, really? Where did you stay then? Sone houses くどこう : We visited some houses and stayed there. I stayed at Mr. Higa's house. He and his Cat=r=" were very kind and did many things for me. For example, they took me to some V places and made me some traditional dishes. I also had an experience (of taking care サトウキビ cane in their field. I had no chance to see sugar cane before coming to that field) S very interesting. Staying with Mr. Higa and his family is my best memory in Okinaw : Wow, you both enjoyed staying in Okinawa. I have become more interested in visi 動名詞 ↑ listening to your stories. 化現在完了形 S : I'm happy about that. If you visit Okinawa, you will like it very much, too. : Well, I've heard that a lot of students go to Kyoto or Nara on the school trip. But (Y" => S SV shows that only fifty students want to go there. I'm a little surprised about that. And V is more popular than Kyoto and Nara 最上 S : Look! Some foreign countries were chosen, too. And your country is the most them all) gift no : I'm happy about that. *Hawaii is also popular, right? 自然と同じくらい SV S V : Yes, it's as popular as Nara. A lot of Japanese people go there on their trips ev S V

(1)です！ 枠内の式になるりゆうがわかりません 公式ですか？

=1 1 m2の とす 練習 ③ 153 (1) 点P(-2,3) を,原点を中心として 点P(3,-1),点A(-1,2)を中心として 点Qの座標を(x,y) とする。 021 (1) 原点をO, OP=r とし, 動径 OP とx軸の正の向きとのなす 角を α とすると -2=rcosa, 3=rsina よってx=rcos(a+box)= BL-0³6 = -2.(-√3)-3.1-2√3-3 -2・ 5 πj=r cos a COS だけ回転させた点Qの座標を求めよ。 6 5 =- だけ回転させた点Qの座標を求めよ。 πrsinasinor 6 =3-(-3) + (-2). / -3√3+2 =3• 2 2 2 5 y=rsin(a+1/6=) -rsinacos /+rcosasin / ・π 6 6 2√3-3 したがって,点Qの座標は (2,3,-3, _3/+2 2 数学 ⅡI151 -2L 3 ya 0 6″ 3 a x 4 練音 [三角関数

（2）と（6）のnor とneitherは、入れ替えることは可能ですか？

【A】 空所に入る適切な語(句) を1つ選びなさい｡ (1) It is time you ( ) to study. (**) 4 had begun 1 begin began 3 will begin (2) A: I don't like this salad very much. () B: Nor ( ). ((3) I do 2 I do either 3 do I 4 I like it either I wish I ( ) in that program. () (3) Kenji told me his trip to London was wonderful. 4 will participate had participated 2 have participated 3 participate . ( 慶應大) (4) Those who hunt pandas in China face the death penalty if ( 4they caught being caught 2 caught 3 having caught ) a little louder. (*) (5) I can't hear him. I wish he ( 3 speaks (4) can speak I would speak 2 will speak ( ). (日本大) "I haven't done my homework yet!" 1 Neither have I 2 Neither do I 3 So do I 4 Either have I Nether (6) 241 00€ IL.COZH (4) L 3 (5) ?(6) 2 1.-) you!

このlittleは目的語ということですか？修飾語にはならないんでしょうか？

<2> 英文図解 He knew little [about the party ], nor did he care. SVO M 疑問文の語順 nor のうしろは疑問文の語順で、 もとは he cared about the party です。 about the party はすでに出ている情報なので省略されます。 he cared を疑問文の語順に したのが､ did he care です。 赤字部分はhe がSで､ (did) care がVです。 和訳 彼はそのパーティーについてほとんど知らなかったし、 気にも していなかった。

なぜ、leftの意味が残ってという意味になるのでしょうか？

Only a minority of people became real punks and there are few left in Britain now, but high unemployment continues to have a strong influence on the attitudes and behaviour of young people. They fear unemployment. Today's teenagers feel that the good things in life will come to them if they can get a job. 解 法 S (主語) の後でPになるのは, 形容詞, 現在分詞,過去分詞, <to be +過去分詞) この課のテーマは there 構文です。 〈There is S+ P (述語)〉という形ですね。 などですが, there 構文におけるSとPの関係のつかみ方をマスターしましょう。 (松蔭女子学院大) では,第1文,さっそく there 構文が登場します。 この文は, and, but という2 つの等位接続詞が3つの等位節を結んでいます。 最初の節です。 ほんのだけ 少数が の人々 になった本当のパンクロッカー Only a minority (of people) became real punks (副) S M Vi C 次の節がこの課のポイントの there 構文です。 いるほとんど~ない残っては英国 現在 and there are few left (in Britain) now, Vi s (ft) P M (副)

お願いします

83.〔 〕内に与えられた語句を主語にして各文を書換えよ。 (1) The book proved a little difficult for me. [1...] (愛知教大) (2) Ten years have passed since my father died. [My father...) (3) She got angry because they laughed. (Their laughter ...) (4) Her pride will not allow her to do such a thing. (小樽商大) (静岡県大) [She ...〕 (福島大) (5) He was said to have spent two years in the north of France. (It...) (横浜国大)

誤文指摘の問題なのですが全くわからないです🥲 教えてください。

1. The most famous case of an animal says to be capable of counting is that of a horse in A B C Germany which was called Clever Hans. D 2. The horse's owner believed that animals can think and reason like we can and that A B C this faculty can be brought out by training the animals. D 3. He trained Clever Hans o give the answers to problems of the arithmetic. A B C D 4. The horse gave the correct answer by tapping the right number of time with its A B C D forefoot. 5. Clever Hans was taught to tap units with one forefoot and tens with another. A B C D 6. The animal gave the correct answers to not only additions but also to other processes B C D of arithmetic. 7. It gave the right answers too when the questions were not spoken but A show to it written on a card. B C D 8. This case was so much talked about in the newspapers that a committee of scientists A B Beat were formed to investigate the astonishing powers of the horse. C nodiby D

②〜➃は、それぞれこの順番通り名詞が並ばなければいけませんか？

6 ① 「東南アジア」 Southeast Asia ② 「あなたの住所氏名」 your name and address ③ 「需要と供給」 ④ 「衣食住」 ⑤ 「東西南北｣ bludy blow 24 supply and demand smil tuo brow food, clothing and shelter north, south, east and west