解説お願いします。数Cベクトルです。 (1)の問題で、参考書の方の解説は理解しているのですが、私の解答の間違いが分かりません。 どこが間違えているのか教えていただきたいです。 よろしくお願いします。

思考プロセス 例題 32 三角形の形状・心・心との内 次の等式が成り立つとき, △ABCはどのような形の三角形か。 (1) AB AC = |AB|2| . (2) AB・BC=BC・CA « ReAction 三角形の形状は、辺の長さの関係を調べよ IIB例題 77 ★★★☆ 目標の言い換え △ABCの形状は ? (UE) 75 (ア) A (イ) HLA 長さの等しい辺, 直角となる頂点を考える。 これまで ベクトルの場合 例 (ア) AB AC (二等辺三角形) |AB|=|AC| BOC (イ) BC2=AB2 + AC2 ABAC = 0 B CO nod (A=90°直角三角形) A (2) [左辺･･･ ∠B をはさむ2ベクトル ∠Bと∠Cについて対等 ... [右辺 ∠Cをはさむ2ベクトル > AB と AC の対等性を予想し,始点をAにそろえる。 B C& AO 解 (1) AB·AC = |AB|より 2 AB・AC-ABAB = 0 AB-AB-AB (80+70) AB・(AC-AB) = 0 A AO) よって ABBC = 0 AB = 0, BC ≠ 0 であるから B AB 1 BC 180+800 したがって, △ABC は ∠B=90°の直角三角形 80 AO (別解 + a+bto 単に「直角三角形」 だけ では不十分である。 与式は AB 0 であるから JAB||AC|cosA=|ABC- |AC|cosA= |ABO これが成り立つのは,∠B=90°のときであるから, △ABC は ∠B=90°の直角三角形 Aから IACIAO |AB| + B C |BC| = |CB| ≠ 0 より |BA | cosb1 = |CA|cosin (別解) 与式より BA・BC=CB・CA |BA||BC|cosb1 = |CB||CA | cosbz めに、

答えはcです。 Among the University of California's most important and prestigious facilities is the Lawrence Livermore Laboratory for nuclear r... 続きを読む

e 0$ 14. the University of California's most important and prestigious facilities is the Lawrence Livermore Laboratory for nuclear research. (A) Of (B) Among mobgni (C) In (D) At

world fame ってなんで名詞が2個もくっついてるんですか？世界有名？

→ 2 解答 A (famous fame)重要度 By 1913 Albert Einstein had won world fame and was invited by the Prussian Academy of Sciences to come to Berlin as titular professor of physics. [訳]1913 年までには、アルバート・アインシュタインは世界的な名声を勝ち得ていた。 そしてプロシア科学アカデミー に物理学の名誉教授としてベルリンに来るべく招かれた。 鬼の解法 他動詞には目的語となる名詞が必要 解説 win の過去分詞 won は他動詞だから目的語が必要。 形容詞 famous を名詞 fame に変 えれば、 won の目的語になる。 world はここでは fame を修飾する形容詞。 正解は (A)。 00

こちらの答え合わせをお願いします！！

)内に与えられた語句を使って、次の日本語を英語で表現しましょう。e Hair Sotcut 08 avriq zemra brie 1. 私は4年前からずっと習字を習っています。 (learn/ calligraphy) I have been learning caligraphy since four 2. たった今、興奮した野球の試合を見終わったところです。 (exciting) I have just finished watching the baseball 3.残念ながら,野外コンサートには行ったことがありません。(outdoor) and years. game exciting. Unfortunately, I have never been to an outdoor 4. 私の手の中に何がはいっているかあててください。 (guess/have) Please quess what I have in my hand. 5. 私は決してこの貴重な経験を忘れないでしょう。(valuable) have never forgotten this valuable 6.このボールを見ると中学時代を思い出します。 (remind/ days) concert. experience. I remind my junior high school days when I see this ball.

②に入る単語がwhereになる意味がわかりません。場所を意味する文なのかも分かりません😭

A h A Humpback whales visit California to feed in the summer and autumn before migrating south 15 to reproduce off the coast of Mexico. They are the world's most endangered among their species. An estimated 35,000 to 40,000 remain in the wild. The Marine Mammal Center says the main threats facing humpback whales are strikes from ships and getting caught in fishing and waste equipment. The Whale Safe system is designed to identify and protect several different species, 20 including humpback, blue, fin and gray whales. It uses three methods to do so. First, it uses devices that float - known as buoys - to record sounds the whales make. Second, it uses computer models to process current and historical ocean data to predict where the whales are most likely to be. Third, it permits trained observers and citizens to report whale sightings through a mobile app. Developers of the system say the expansion of Whale Safe to San 25 Francisco demonstrates that the system can be successfully used in more places in the United States and around the world. 年度 一般前期 1月30日 Jeff Boehm is a leader of the Marine Mammal Center. He said the Whale Safe system combines the latest technology with thoughtful conservation efforts "to create a solution to reduce risk to whales." Boehm added, "This is ( 2 ) tech meets Mother Nature for the benefit mads S 30 of marine life." avili .1 (0) 英語 Douglas McCauley is director of the Benioff Ocean Science Laboratory. He said in a Lilline of whales hv ship strikes is "an avoidable problem." "We can't any は、

(d)の答えがdidになる理由が分かりません。そして、主語がどこまでなのかも教えて欲しいです🙇‍♀️

(c) If you need eggs for dinner, I'll go and get (q) immediately.qu 1. that 2. ones 3. some doirw ni 4.with S distoot grittog to tos die (d) Little ( ) I dream that we would win the national championship. 1. was (2)次の英文は一箇所訂正す 2. am 3. had physic 4. did

答えがsomeになる理由が分かりません。itではいけない理由も教えて欲しいです

(c) If you need eggs for dinner, I'll go and get (q) immediately.qu 1. that 2. ones 3. some doirw ni 4.with S distoot grittog to tos die (d) Little ( ) I dream that we would win the national championship. 1. was (2)次の英文は一箇所訂正す 2. am 3. had physic 4. did

英検2級の要約問題です。添削お願いします🥲

語数の ■解答は, 下の英文要約解答欄に書きなさい。 なお、解答欄の外に書かれたものは採点されません。 よく読んでから答えてください。 ●解答が英文の要約になっていないと判断された場合は, 0点と採点されることがあります。英文を When people want to buy clothes, many go to stores that sell the latest fashions or order their favorite brands online. There is also another choice. Some people go to used-clothes stores to buy their clothes. People buy used clothes for different reasons. For example, some people like brand- name clothes but cannot buy them because they cost a lot of money. They can get such clothes for low prices at used-clothes stores. Also, some people like clothes with old designs that are no used-clothes stores. longer sold in other stores. They can often find the designs they like in Nevertheless, used clothes may have holes in them or have buttons missing. Also, it is difficult for people to find clothes that fit in used-clothes stores, since each item is usually only available in one size. As a result, people sometimes cannot get the clothes they want. 英文要約解答欄 When people want to go to used - clothes. buy clothes, they People buy used clothes for many reasons. igns For instance, They like brand name and desig So they find. their favorite aised - clothes. However people don't find clothes that fit in used - clothes. So, sometimes they can't get the clothes they want, 15 17 日 目 筆記 4 10 15

高一英語です。 1）の空欄に入る単語が分かりません。教えてください🙇🏼‍♀️

Newscaster: Although e-sports is now very popular, few Japanese high schools have introduced e-sports as a club activity. Can you think of a reason, Mr. Yoneda? Commentator (Mr. Yoneda): Well, some teachers and parents ask me if e-sports is a real sport. I'm afraid they still see e-sports as a waste of time. E-sports. players need physical and mental skills, such as quick responses, concentration, and strategies, just like other athletes. In fact, the U.S. government now recognizes e-sports players as professional athletes. The government lets them enter the U.S. and play like other professional athletes by giving them a special visa. Newscaster: What, then, are some of the advantages of introducing e-sports in high school? Commentator: First, students can enjoy e-sports regardless of their physical strength. Second, they can learn the value of teamwork. Third, they can communicate and make friends with various people online outside of school not only in Japan but also in other countries.

so that構文を使った英作文の仕方、長文での意味の取り方を教えてください