図形についての問題です。 この(2)の解説がよく分からないです。 ・なぜ分母が最大の時分数の値が最大になるのですか？ ・2sinθが分母なのに2は考えず、sinθの範囲だけ求め るのはなぜですか？ ・sinθが1の時なぜ最小になるのですか？ 質問多くてすみません。全... 続きを読む

[2] 鋭角三角形 ABCの辺BC上(両端を除く)に点Pがある。△ABP の外接円の半径 と△ACP の外接円の半径の和が最小となるような点Pはどの位置にあるかを考察する。 ( ・考察・ it st BO BC=α, CA = b, AB = c とし, △ABP の外接円の半径をR1, △ACP の外接円の半 (003 ART 34 U DAN T O T COA COX (2) | 径をRとする。 ∠BPA = 0 とし, 正弦定理により R1 をc, sine を用いて表すと, R1= MOR (1) である。 また,同様に R2 をb, sin 0 を用いて表すと, R2 = (イ) 同様にRob, sing を用いており sin Q を用いて表すと, SKOCZOTOSHOXFCO $300 (イ) を正しくうめよ。 prox 301 1 (2) 点Pの位置は,考察で用いた 0 の値によって定まる。 △ABP の外接円の半径と △ACP の外接円の半径の和 R1+R2 が最小となるような0の値, および R1+R2 の最小 値を求める過程とともに解答欄に記述せよ。 ただし, R1+R2 の最小値は考察で用いた *>501312AD b,c を用いて表せ。 (配点 10) > BAN R2=(1) である。 JA

英作文の添削をお願いします。😌

[4] Read the instructions and write a well-organized answer in English. (50 points) Virtual reality (VR)* refers to a high-quality simulation of reality created by a computer. Probably the most famous use for VR so far is gaming. But VR has also been used to improve society in various fields such as education, medicine, and engineering. Describe a single specific way that virtual reality can be used to improve society. Explain your idea in detail in about 100 English words. Notes: Virtual reality (VR)*: VR systems use special glasses that completely cover the user's eyes. These glasses show a very realistic picture of a world created by the computer. In addition, the systems can tell when the user moves their head, arms, and sometimes other body parts. So users can control the action by natural movement. Some systems even let users feel like they are touching things. Thus, VR systems can make users feel like they are really in another world. 〔答案〕 I suggest you to simulation with VR. For example, doctors can practice operation. I have the three reasons. First, VR's display is very real. So doctors can do as if real simulation. Second, every one can make simulation software. If you want add patients information to VR and study how to make software, you can make VR software to yourself. Third, medical professors can use VR simulation in lecture. If they do this, Students who want be surgeon in the future will reduce about operation's anxiety. In this way, VR have a lot of possibilities that useful of medical field. For these reasons, I suggest VR simulations.

「what is a problem｣っていう関係節？の間になぜyou thinkが入るのですか？｢｣はひとかたまりではないのですか？他の文をみても、この問題みたいに間に挿入されてなくて…。

解説 3 (4) what you think is a problem は what is a problem 「問題であること」にyou think を挿入した (c) 1 .

平面ベクトルの三角形の面積の式はなぜ、S=1/2√|a|²|b|²-(a･b)=1/2|a₁b₂-a₂b₁|(aとbはベクトル)となるのでしょうか? 平面ベクトルの中の、ベクトル方程式,点の存在範囲の問題です。3枚目のように考えてみましたが分かりませんでした...

279 ベクトル方程式,点の存在範囲 (1) 点A(4,3)を通り, = (13) に垂直な直線の方程式は4である。 (2) 0(0.0), A(1,3),B(21) とし, 点PがOP = SOA+tOB, s≧0. t≧0≦s+t≧2を満たしながら動くとき, 点Pの存在する範囲の面積は である。 (3) 座標平面上の定点A(2,-1)と任意の点Pに対 や

in the choice of は何かの熟語ですか？

may [might] well do には,(1) たぶん･･･ with good reason)」の2つの意味がある。 have good reason to do 「・・・するもっともな理由がある」という表 (=probably)」, (2). may [might] as well do ... as do ~｢~する may [might] as well do ... as do 〜 では well のあとと as のあとに 「~するより家にいる方がいい」 という文意を完成させる。 may [might] as well dc ◆この表現は may [might] as well do ... as do 〜 の as do 〜 が示され (3) 74 You cannot be too careful in the choice of your friends 75 ③ 3 might as well stay at home 79 ②

（4）の答えがthe problemでしたがsolving the problemではダメでしょうか？

humans. "We were able to identify one of the many molecular features that likely shape behavior," she adds. ** hol boquete es Though the origins of the dog/human partnership remain unknown, it's becoming increasingly clear that each species has changed (during our long years header The physical differences between a basset hound and wolf are obvious, but dogs have also changed in ways that are more than skin (or fur) deep. One recent study shows how by bonding with us and learning to work ogether with humans, dogs may have actually become worse at working together Their pack lifestyle and mentality appear to be reduced and are far as a species. less prevalent even in wild dogs than in wolves. But, Yale's Laurie Santos says, dogs may have compensated in other interesting ways. They've learned to use humans to solve problems. "Several researchers have presented dogs and wolves with an impossible problem (e.g., a puzzle box that can't be opened or a pulling tool that stops working) and have asked how these different species react," Santos explains. Researchers have found that wolves try lots of different trial and error tactics to solve the problem - they get at it physically. But at the first sign of trouble, dogs do something different. They look back to their human companion for help. This work hints that dogs may have lost some of their physical problem-solving abilities in favor of more social strategies, ones that rely on the unique sort of cooperation

1枚目の11番のところのtheyと21番のthisはそれぞれ何を示しているのか教えてください。 2枚目の17番のweを示しているのは誰ですか。 3枚目の6番のsheはだれを示しているのか。 至急お願いします

Date 1. English as a ( 19 2 ) to one ( English )( 3 native English speakers ( 4 only a ( 5 English is now used more often/ 6 between ( )-(. most native speakers /tadé// )( .)/ ) of the world's English speakers. // ) speakers / 11 they 12 The English( 13 is called English as a lingua franca / 14 or ELF.// LESSON 4 than between ( 8 For example,/ 9 when business people from Japan, China, and Korea / 10 have a meeting,/ ) speakers. // 15 In using ELF,/ 16 you should speak clearly and simply.// 17 You should also ( ) on ( 18 For example, / ), / ) their business in English. // Xin this ( 20|( 21 This is not a problem/ 22 because we can understand both.// )(ELF) 23 However, / 24 if you say /dadér/ or /tatér/, / 25 no one will understand what you say.// 26 This example shows us/ ) some usually say /tadáw/// →このような例とは? 27 that consonants are more important than ( today as DL Part 3 どのような状況? ). // ) 11 ネ法 Japanese 国際共通語としての英語(ELF) ある概算によると 英語母語話者[ネイティブスピーカー] は 占めるにすぎません 世界の英語話者のたった4分の1を 今では、よく英語が使われています 非母語話者[非ネイティブスピーカー] 間 のほうが 母語話者 [ネイティブスピーカー] 間よりも たとえば 日本,中国, 韓国の実業家が 会議をするとき 彼らは英語で彼らのビジネスについて話 し合います このような状況で話される英語は 国際共通語としての英語と呼ばれます またはELFと ELFを使うときは はっきりと, 簡潔に話すべきです また、子音にも注意を集中させるべきで す たとえば たいていの母語話者[ネイティブスピーカー] は todayを/tadér/ と発音します 一方で、 普段は/tadá / と言う人もいま す これは問題ではありません 私たちは両方とも理解できるので しかしながら もし/dadér/か/tatér/ と言えば あなたの言うことはだれもわからないで しょう この例は、私たちに示しています 重要であることを

英文についてです。 3番の答えはどうしてdなのですか？ population っていう一語の重複を避けるために使うからoneでいい thatを使うのは省略する単語が名詞一個でないときだ と考えたのですが、どこが違うのでしょうか。 よろしければ教えてください。

1 空所に入れるのに最も適当な語句を、次のa)~d) から1つずつ選びなさい。 1. We soon realized that the problem was (b ) difficult than we had first a) so b) more c) as d) much S 2. I don't have as many friends as you ( & d) doing a) are b) be c) do 3. The population of Beijing is larger than (od d) that a) one b) which c) those hoge ). 5. ( b) in Japan is greater than he. a) No more statesman c) No less statesman EF 3. Beijing [ ) of Hong Kong. 4. Recycling is becoming ( ) important. a) more and more b) superior to c) worse and worse d) be ) in Japan is greater than he.az nie wód densado b) No other statesman d) No another statesman 5. statesman = political leader []

最終文の訳が、 身なりはとてもきちんとしており、 「生きているって楽しいね」 という気持ちが伝わる態度のおかげで、 時折見せるやんちゃぶりさえも人を喜ばせるのだった。 どういう文法ですか？

Lesson 10 All the Good Things <授業プリント> Ten Lifelong treasure of memorable words - idquers sodux ad'T I Saint Mary's School in Morris, Minnesota. neem vilno od tedw boereroben t'at Soi - Very neat () abery brids 1 He He was in the third grade class I taught All 34 of my students were dear to me, but Mark Eklund was one in a million. 愛おしい in appearance, he had that happy-to-be-alive attitude that made even his occasional 時々の atnemelsta toemaa owl erit e2o0rQ that talking JT nd him again and again t 2 Mark also talked incessantly. I tried to remind him esmit vasm mid bedoorros Todtus edi bas yod auoveidosim s asw bould deM.S numission was not acceptable. What impressed me so much, though, was the mischievousness delightful. いたずら好きの

めんどくさいと思うのですが囲ってある部分の答えをどなたか教えてくださいm(_ _)m

Part 1 artificial /à:rtifif(o)l/ intelligence /intélidz(a)ns/ handle(s) /hænd(a)l(z)/ deal /di:l/ assistant /əsist(ə)nt/ reply /riplá possible /pá(:)səb(ə)l/ huge /hjú:d3/ knowledge /ná(:)lidz/ appropriate /apróupriat/ seem /si:m/ safety /sérfti/ Sakura reads about the spread of AI. AI, artificial intelligence, handles a great deal of information. It makes decisions like humans. Al is used in many systems today. How us Voice assistant systems are one example. When you ask something, the systems give you a quick reply. is this possible? They access a huge online knowledge database. From this, they choose appropriate words to make answers. The answers created by AI often seem to be just for you. This is because the systems are always collecting data about you. AI is also used in air conditioners, robot vacuum cleaners, car safety systems, and so on. They help our lives a lot. AI seems to make everything possible. the systems give usl reply." 6. this は何を指しますか。 a (great) deal of 6. They は何を指しますか。 7. this は何を指しますか。 and so on Dy D. access CUNTA?