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数学 高校生

これは別解として成り立っていますか? 数学A青チャート、例題87です。

が成り立つことを証明 (DAAD), AC 角の大小にもち込む 2辺の和>他の1辺 中線は2倍にのばす (平行四辺形の対辺の長さ 三角形の2辺の長さの和 は他の1辺の長さより大 きい(定理8) 不等式の性質 a<d, b<e, e<f => a+b+c<d+e+f JAPAB であることを証明せよ。 齢分ABの垂直二等分線とに関してAと同じ側にあって、直線AB上にな 「1点をPとすると、AP<BPであることを証明せよ。 10U17 00000 直角三角形ABCの辺BC上に、頂点と異なる点をとると、 (辺の大小)(角の大小)が成り立つことを利用する。 APCABの代わりに<日<2APBを示す。2つの三角形△ABPとAPCに (②2) (1)と同様に, PBA <<PAB を示すことを目指すと線分PBとの交点をQ とすると、AQAB は二等辺三角形であることに注目。 CHARY 三角形の辺の長さの比較角の大小にもち込む ABCは∠C=90°の直角三角 (D) 形であるから <B<<C 2APB=&CAP+2C ⑩.②から すなわち よって ****** 2B <ZAPB AP <AB (2) 点P,Bは! に関して反対側にあるから、線分PBは と交わる。その交点をQとすると,Qは線分PB上に (2) ある (P, B とは異なる)から 2PAB> <QAB また、Qは上にあるから ****** AQ-BQ ∠QAB=∠QBA ∠QBA < ∠PAB ∠PBA << PAB AP <BP <<C-90°であるから ∠A<90°, <B<90° ****** APCの内角と角の <<B<<C<∠APBか 三角形の2辺の大小 上の例題 (2)の結果から, AABCの2 辺AB, AC の長さの大小は, 辺BCの垂直二等分線を利用して判定できることがわかる。つまり 辺BCの垂直二等分線ℓに関して,点Aが点Bと同じ側に あれば、AB<ACである。 <B <ZAPB B Q An M B 3 101 一三角形の辺と角 C

解決済み 回答数: 1
英語 中学生

それぞれに埋まる単語教えて頂きたいです😭

◆次の英文を読んで,あとの問いに答えなさい。 <埼玉改〉 Ayako is a junior high school student and her homeroom teacher is Mr. Tanaka. He said to the students in class, "You will have work experience next month. So think about the future and the work experience you want. Then talk about these with your family. This is your homework. Next Monday you are going to talk about it with your classmates in class." That evening Ayako talked to her family about the homework. She said, "I have no idea about the future. What should I do?" Her mother said, "You don't need to worry about it now." Her brother said, "When I was a junior high school student, I was like you. But I was interested in environmental science when I was a third year student in high school. Now I'm studying it at college." Her father asked, "What are you interested in?" Ayako couldn't answer. He continued, "You should think about that first." Next Monday when class started, Mr. Tanaka said to the students, "Talk to the person next to you about the future and work experience. Then give some advice to each other." The person next to Ayako was Robert. He was from Australia. They enjoyed playing basketball at school and were good friends. "Well, Robert, do you have any ideas about the future and work experience?" Ayako asked. "Yes. I want to go to a hospital for work experience. When I was sick in the hospital, a nurse tried hard to help me in English. And she took good care of me. I was very glad. So I want to be a nurse in the future and help people," he said. "How about you, Ayako?" "I have no idea about the future," she said, and then talked to him about her father's advice. "Your father's advice sounds good," he said. "OK. I'll ask you some questions. What do you like 20 to do?" "I like to play basketball on the school's basketball team," she answered. "I like basketball too. Why are you interested in it?" he asked. "Because it's fun to play. And I'm the captain of my team, so I teach basketball to the younger members. I'm interested in that," she answered. "I think you are good at teaching basketball, and all the members like you," he said. "Oh, thank you," she said. "Well, Ayako, how about a school teacher as a future job?" he said. "I think you will take good care of students." 1 35 1. 25 "Thank you. I think it is an important job. OK. I'll think about it," she said. At the end of class 30 she was happy because she had an idea for her future job. She thought listening to her father's advice and talking with Robert were useful. The next week Ayako and Robert were talking again. He said, "Well, Ayako, did you think about work experience? Where do you want to go for it?" Ayako smiled and said, "I'm thinking about teaching at school as a future job, so I want to go to an elementary school for work experience. If I 35 work as a teacher, I need to learn a lot of things. I'm studying harder now."

解決済み 回答数: 1
英語 高校生

明日までに送ってください。仮定法です。

()内の語句を適当な形にして、英文を完成させなさい。 (1) I love that amusement park. I wish I (can go ) there more often. (2) It's so cold! I wish I (bring) a sweater. (3) When she was a child, she wished every day (be) Sunday. (4) Janet behaves as if she (be) the captain of this team. (5) Ann looks as if she (hear) something shocking. Do you know what she heard? 2 日本語の意味に合うように,( )に適当な語を入れなさい。 (1) 彼はそろそろどのクラブに入るか決めてもよいころだ。 It's about time he ( which club to join.なさい。 (2) 姉がいなければ、彼女は自分に似合う服を選べないだろう。sini tols wone⑤ )())() her sister, she could not choose clothes that suit her. If it ( (3) リュウの親切な言葉がなかったら、 僕らは困っていただろう。 AB CD If it()())()() Ryu's kind words, we would have gotten into Wen trouble. (4) 砂漠がなかったら、 彼らの生活様式はかなり違うものになるだろう。 the desert, their lifestyle () ( TORREZEP (5)あなたの手助けがあれば,私たちはこの製品の問題点を解決できただろうに。 imod TO 2 D 3 下線部に注意して、次の英文を日本語に直しなさい。 (1) Were I in your place, I would ask Jack for some advice. (2) With my brother's car, we could go to the station quickly. ) quite different. ) your help, we ()()() the problems with this product. bamun largia sdTⓒ (3) My mother gave me some money. Otherwise, I couldn't have bought that skirt. (4) To hear Sally talk, you would think she is a good manager. (5) A Japanese would think it natural to eat raw fish. at bounogge af 4 ( )内の語句を並べかえて, 英文を完成させなさい。 ABCD (1) I wish(speak / fluently / could / Ⅰ / English / more ). (2) He was talking about the accident (as/he/ had / if / it / seen). (3) (known/I / were / had / my glasses / there), I wouldn't have stepped on them. (4) (had / been / if / the security system / for / it / not ), the stranger (entered/might / have / the building). Put it into English 仮定法を用いて書いてみよう (1) 私も母と同じくらいじょうずに料理することができたらなあ。 (2) 彼女はまるで南極に行くかのような格好をしている。(be dressed, the South Pole) (3) もうテレビを消して寝る時間だよ。 (4) まじめな人なら、そんなことはしないでしょう。 (A serious person で始めて)

未解決 回答数: 1