青チャートのAです かっこ1で証明に使わない角についてわざわz言及しているのはなぜですか

87 基本例題 接弦定理の逆の利用 00000 10の外部に接線 PA, PB を引く。 点Bを通り, PAと平行 SCOUT な直線が円0と再び交わる点をCとする。 <PAB=a とするとき, ∠BACをaを用いて表せ。 直線 AC は △PAB の外接円の接線であることを証明せよ。 指針 (1) 円の外部の1点からその円に引いた2本の接線の長さは等しいことや, 接弦定理, 平行線の同位角・錯角に注目して,∠PAB に等しい角をいくつか見つける。 (2) 接線であることの証明に、次の接弦定理の逆を利用する。 0,348 TERA 円 0 の弧 AB と半直線 AT が直線 AB に関して同じ側にあって ∠ACB=∠BAT ならば,直線ATは点Aで円0に接する (1) の結果を利用して,∠APB=∠BAC を示す。 解答 (1) PA=PBであるから ∠PAB=∠PBA=a また, PA//BC であるから ∠ABC=∠PAB=α 更に ∠ACB=∠PAB=α よって, △ABCにおいて ∠BAC=180°−2a ...... P おいて、円の CHART》 接線であることの証明 接弦定理の逆が有効 (19) A B89 使わない DETERA ∠APB=180°-2a 0円 13 p.436 基本事項 ② ...... A HA3 | 接線の長さの相等。 a NGAPDATA C onit SA SEN 09:A ART SI (2) AAPBにおいて 1⑩② から ∠APB=∠BAC THIAPATIA したがって,直線 AC は △PAB の外接円の接線である。 A4 接弦定理の逆 B 439 T > 平行線の錯角は等しい 接弦定理 PROL PA- とし、その手をとすると、名は てみよし、これから △PAB は二等辺三角形。 79-84-A4 A 章 144 円と直線、2つの円の位置関係 <DO & FR>

なぜこの答えになるのですか！？ 教えてください

(3) She determined ( 7 accepting ) the offer. to accept accept I accepted (4) I usually avoid ( ) to work during rush hours. 7 travel イ traveled ウ me?. to travel 未来指向 I traveling tras BEFOIST 事実指向

Read and then write EnglishでAndの直後の副詞はBを修飾しますか？

and butor の直後の語句をマーク クします “A and B” において何がA で何がBかを見つけるには、Bからチェックします。 なぜなら, 一般的に B が and の直後にあることが多いのです。 and を見たら指先でB にあたる表現を確認し、 次に指先をand の前に移動してBと文法的に同質の表現を探 します。 B が動詞なら原形 現在形 過去形・過去分詞のどれかを考えながらAを探 すのです。 ただし, “A LATE and+副詞(句/節) + B" のように,副詞的語句が邪魔をす abo ることがありますが, その語句を無視してBを探します。 そのときBが見当たらなけ れば,その副詞的語句がBになります。きが見当たらない ori gnots agriblould or more tilgood budesysle of sung A and (副) BlanB became the chief slave trader read and then write English BoA to Jason 1897 Bからチェック 2 1 (替避〕メリカはイ 第1文と第2文 第1文の the island (of Yap) のofは 「同格の of」 で, 「ヤップという島」が直訳 です。 第2文の and がつなぐのは a big stick と strong arms。 これらの名詞群が Lene Bucu needの0 になっています。 AHG >>$05 第3文 1 個は のヤップ お金 A piece (of Yap money) S M Ton Alta and A Jon 3** [J*J1 % and がある1つの穴 has a hole (in the middle), Vt O M but **Re こともあるである can be TENGESTJEN Vi 3 three または or 等 そしてこともある 重さがあるを超える $35] 太 a jud 5 ton ton 養 メートルだけ高い meters high C 4 foure Black kings ton ei ol along…. & PORS キログラムA 1000 A P SとVを発見する技術 文の主要素の把握 等位接続詞の働き 時間関係の把握 従属節の把握

数Bベクトル図形の応用問題です、 蛍光ペンの続きが分からないのでどなたか教えて欲しいです🙇‍♀️

A (a) 2 VIN E 15 [326改訂版 高等学校 数学B 問題8] △OAB において, 辺OA を 2:3に内分する点をC, 辺OBを1:3に内分する点をD, 辺ABの中点を E とし,線分 BC と線分ED の交点をPとする。 OA=4,OB=とす るとき, OP を用いて表せ。 eye' = !!! Opit Ent Sil-s a trketer. OBS+ DE² (1+) ^-+(1-5). niła TÀ=ã; OP¹ = 241. 02²= ate Serpe 2(1-5)+ (1-5) OF +5 0.5 0 (1-5) a te f = 2 -5₁ 4 1 Pit But tili 13€ 7. out + oF (1-4) ((1-t) of + tod t +(1-6). = (1-²) ² + t2 m₁ op = (1-4) 1²+2 = (tät (1-4) 2. t ett 201". (2-25) 25² tl)

質問です。(2)のf(x)/x を微分する問題なのですが、今回の0＜x＜π/2 の時の範囲を気にせずに解けてしまったのですが、このxの範囲が問題にある意味を説明してください。よろしくお願いいたします！

本自治体の出題例 : 始めにチャレンジ! ② (2021年度実施問題) tを実数とする。関数 f(x) = cosx-exについて,次の (1)~(3)の問いに 答えなさい。 (1) f(z)=0を満たすの値を求めなさい。 ただし,答えのみ書きなさ い。 (2) 0<x<1のとき, f(x)をxについて微分しなさい。 ただし,答えの み書きなさい。 (3) 定積分S= S=∫f(x)dxを最小にするときのtの値を求めなさい。 0 解答: 3 xsinx+cosx (1) t=10g2 (2) x2

③④の文法の説明をお願いします

② English is spoken all over the world. 3 We have been invited to Hiro's New Year's party. ④ A new cafeteria is being built at our school. ⑤ Our school sports day will be held next Sunday. ●「行為者」を特に付け加えたいときに by ~(~によって)が用いられますが,それほど頻繁ではありません。 Liqu 行為者を特に示さない - 完了形 ②-6 進行 形 助動詞 ②-5

四角の1番と2番の答え教えて頂きたいです！、

[ ]に与えられた語を適切な形に変えて英文を完成させましょう。 1. Tom ( 2. I ( ) apples so he eats one every morning. It's good for his health. [like] ) in Osaka when I was a child. So, the Kansai dialect sounds familar to ) around the earth and the earth goes around the sun. [go] ) for London last night. I miss her very much. [leave] ) ( ) hard these days for the final exams. I'm sure she will be successful. [study] 2 ( 内の語を並べかえて、会話を完成させましょう。 下線の語は形を変える必要があるかどうか考え てみよう。 1. "How does Yuki go to school?" "(by/go/ there / bus / she) every day." 2. "Where's Bob?" "He (is/with/ tennis /play) Tom in the park now." C 3. "What were you doing around noon yesterday?" "I (the / lunch / cafeteria / have / was / at)." me. [live] 3. The moon ( 4. She ( 5. Mary (

この答えを教えて欲しいです。🙇‍♀️

Level Passage : 2:30 Lesson 5 Jet Reading 22 ⑤ Questions: 2:00 Compared to dogs and other pet animals, cats often have lots of freedom. Many owners let their pet cats go outside whenever they want to. But where do they go? Does your cat visit your neighbor's house for extra food? How far from home does your cat actually travel? Cat owners have been wondering about such questions for a long time. 5 To find out where cats go and what they do, researchers decided to track them by putting a GPS (Global Positioning System) device around their neck. It is well known that cats are natural hunters. They often chase and catch *wildlife, such as birds and other small animals. It was therefore believed Hoor war301 that cats may go far from their homes to hunt. However, the research showed some surprising facts about cat *behavior. It seems that most cats 10 don't travel very far from their homes. On average, they move around two houses away. Owners were *relieved to hear this result because it confirmed that their cats do not cross major roads. There was another interesting result. One female cat walked more than 1 kilometer from her home. When the owner checked her GPS data, they discovered that the cat had gone to their old house. It showed that cats remember the past longer and more clearly than we think.(219 words) *wildlife 44 *relieve ~を安心させる *behavior Infogt) A Choose the best options. (2 points x2) According to the passage, which of the following statements are true about cats? (Choose two options. The order does not matter.) so svom i da a. They enjoy more freedom than other pet animals. imove sill niw nuo exentabilt o b. A GPS device was put around a cat's tail by researchers. c. They go far from their homes to hunt wildlife. Sanino sasd Juoda su v d. The research proved that most cats cross major roads. of Inboq bow it bean 17 s e. They may remember the past more clearly than we expect. Bewe )( B Fill in each blank with a suitable word. (2 points x3) ******* ******** Many owners let their cats go (¹ ), but no one exactly knew where they went and what ) the cats by using a GPS device. they did. In order to find this out, researchers decided to (² maswid Bai As a result, they learned that most cats didn't travel very far from their homes. One cat, however, walked more than 1 kilometer from its home. It turned out that it had (3 shows that cats have a better memory than people thought. ) its old house. This result sal al commaly to pound How Judw grinidman [catch/ forgotten / visited / outside /track/inside] Time ☆ ~1:45 ~2:00 ~2:15 ~2:30 ~2:45 ~3:00-3:30 Reading Speed X WPM 125 109 97 88 80 73 63 /10 Name Class No. 10 2015

上の文の品詞分解お願いいたします

SECTION 34 I Have you made up your mind about what to do with the rest of the stuff? 2 mind 名 ( 思考・感情をつかさどる) 心, 頭(body 体) [mãind (マインドゥ)] □make up one's mind (to do...) 動 (...すること を) 決心する (decide [be determined] (to do...)) mind(...) 動 (...) いやだと [不快に] 思う □méntal 形 ① 知能の, 頭を使う ② 精神面の what to do... 定 ...すること, ...すべきこと do with ... 動 ...をどうにかする [扱う] (deal with...) 130 130 0 the rest (of...) 名 (...の) 残り □ rest 名 休息 (break) [rést (ストゥ)] - - (...) 動 休息をとる, ... を休ませる ... 13 stuff IF ものこと (thing(s)) [stif (スタフ)] - ... 動 ... に [を] 詰め込む (fill...) ... f...) ue) ]) 129 残りものをどうするか決めた? 3

この問題の解答を教えてください

2020年度 英語 京都産業大-公募推薦11月16日 京都産業大-公募推薦11月16日 2020 年度 英語 (B]次の会話文を読んで,空所をうめるのに最も適切なものを一つ選び, その番号 をマークしなさい。 Mike: Pea soup? No way! Well, you chose the museum, so how about if I ( 19 )? Jack: That sounds fair. Let's go. I like their pizza. Jack and Mike are in an art museum. 16) Jack: Hey, look at this one! What a fantastic sculpture! 1. show me a rock Mike: Uh, what is that? 2. stop you praising it Jack: I don't know, but it's quite amazing. Just look at how the shape curves up 3. make me depressed from the floor, and the color and the texture give it a feeling of sadness. 4. help you understand it Mike: Huh? What are you talking about? I just see a rock. Jack: No, no, no! You have to look at it in a different way. Here, read the tite 7) and description of the piece. Maybe that will ( 16 ). 1. can't imagine Mike: The piece is called The Edge of Dawn." It says here that the artist 2. want to tell us wanted to create the feeling of an early morning on a rocky beach. Well, I understand the "rocky" part, but not much else. The only thing I feel is 3. say about Rembrandt hungry, because it's lunchtime. 4. don't like about the beach aleg Jack: Unbelievable! I think that the artist wants to challenge us to imagine how he felt when he created the piece. You know, most artists have something 18) d or *they( 17 ), or something they want us to think about. 1. No, I'm not. Mike: You're kidding, right? I's just a rock in a room. There's no special 2. That's not true! meaning. 3. If it's lunchtime, Jack: You're not an art lover, are you? 4. You mean, classical music? Mike: ( 18 )Ilove Rembrandt and all the classic works. People, buildings, bowls of fruit, they all look so real. But this modern art? Even I could do 19) that! 1. stay here Jack: Ah, but you didn't. Maybe that's the difference. Anyway, I like it a lot. 2. eat by myself Mike: Okay, let's agree to disagree. Everyone has their own opinion, I guess. 3. agree with your choice Anyway, are you ready for lunch yet? I heard there's a great Italian 4. decide the restaurant for lunch restaurant just down the street. Jack: Or we could eat in the museum cafeteria. They make a good pea soup. HRNO. L NAME C