（有限次元）線型空間 V の線形変換 T が等長変換（任意の 𝕩∈V に対し ‖T𝕩‖=‖𝕩‖ ）のとき T は V のユニタリ変換となるのですが，この T が全射であることの証明が思いつきません。

三平方の定理 分からない箇所を手書きでまとめました。 まとめると、ACの求め方、すなわち分母がこうなる理由が分かりません。 私の考えの間違い指摘、回答の解説をお願いいたします。 1枚目不明点、2枚目回答です。

222.5 A5匹 ( 450 5 5 B Sin22.5の値を求める問いです。 Sin225 が、 BC であることは理解してます。 AC その上で、まだACの値が分からないので 三平方の定理より、AC^²=(5,52+5)+5² だと思ったのですが、解答が画像の通り でした。私の考えの間違いの指的、 解答の解説をお願いいたします。

mathmaticaを使ってvan der pol方程式のシュミレーションをしたいのですがグラフが出ないです。どなたか訂正箇所がありましたら教えていただきたいです。

anderpol.m Syntax: (cannot be followed by x, t). 0)= Plot[{x-x^3/3-y}, {t(2x−y)}, {×, −2, 2} {y, −2, 2} {t, 1}] Plot: Options e

下から4行目、the Omega Advance line は訳だとオメガアドバンス社でしたが、lineを調べても会社という意味はなかったのですが、このlineはどういう意味で使われているのですか？

T1-46 Questions 65 through 67 refer to the following conversation and list. W: Our printer isn't working as well as it used to. The lines and characters don't appear sharply on the page. M: I noticed that too. Everything looks like it has a shadow. W: It's good enough for internal documents, but it could make a bad impression when we send letters to clients. M: You're right. Well, the warranty on it expired last year. We should probably start looking for a new one. W: I was thinking the same thing. I'd recommend something from the Omega Advance line. I left their brochure on your desk. I don't remember the name of the model, but the second cheapest one looks like it would best meet our needs.

何度か解いてみましたがごちゃごちゃしてしまってパニックになっています😵‍💫細かく説明していただけると幸いですm(_ _)m

課題3以下の問いに答えよ。 ただし,必要があれば実数の連続性 「有界な単調数列は収束する」 を認めて 使用して良い. 1.次の数列{an}の極限を求めよ. an = √n +1-√n 2. 次の数列は有界で単調増加であることを示し, 極限を求めよ. (1) Q1=1, an+1 = Van + 1 (2) 01 =1, Qn+1= 30+4 20+3

One of the most painful circumstances of recent advances in science is that each of them makes us know less than we thought we did. 最近の科... Read More

英文法の穴埋め問題をどなたか教えていただきたいです。1〜8までの正解と解説をお願いします。

10 abc X₂ X² Aa A AⓇ フォント # V 1.4 2 ← 2 E 2. The shepherd has a habit of counting his sheep every night to make sure that all there. (A) ite (B) it's (C) their (D) they're E for her best-selling nature photography books, Naomi Ward opens a photography school next month. (A) Know (B) Knowing (C) Known (D) To know 3.4 2 2 段落 e beginning and advanced courses in cellular biology include lecture and laboratory time. (A) Both (B) Each 4. An all-staff meeting on November 6th will focus on ------ each department is doing to prepare for our annual inspection. (A) howe (B) whate (C) Either (D) Every アクセシビリティ: 検討が必要です 2 2 f E 5. John Berg went to his office to talk with his boss he returned from his overseas business trip. (A) as far as E 2 2 6. Bill Cain had never heard of the company; he could not say anything when his A S 8. E ------ ← 標準 I (B) once + ■行間詰め (C) so that (D) whereas 7. This fall, Plasma Tech Inc. is offering a new line of digital metering products that are compact, ---, and reasonably priced.< (A) consistente (B) conveniente (C) insistent (D) present 見出し1 boss asked him about it. (A) however (B) meanwhile (C) nonetheless- (D) therefore On Saturday, October 19, Headlands Sports Club is holding Day. (A) it (B) its 見出し 2 annual Open スタイル E 表題

次の2問の解説をお願いします。 (1) X := {(x,y) ∈ R^2 |(x^2 −y^2)(x^2 +y^2 −1) = 0}の基本群を求めよ. (2) Y := {(x,y,z) ∈ R^3 |(x^2 +y^2)(y^2 +z^2)(x^2 +y^2 +z^... Read More

志望校の過去問です。 英作文の添削をお願いします！

(V] 以下の英文を読んで, 英語で答えよ。 Some people move to large cities and live there. Other people move to small rural towns or villages and live there. There are advantages and disadvantages to living in both kinds of places. Which kind of place would you like to live in? Explain your choice using reasons and examples. You should write 4 to 6, sentences in English.

教えていただきたいです。よろしくお願いいたします。

B 下の接続詞を使って、 Kaiに関する文章を完成させましょう。 and because but if so Kai is outgoing, positive, serious ambitious, 2 also stubborn. A big company is best for him he can meet new people, and he has more opportunities for advancement. He thinks he can he works on a team. He likes 4 develop a better product immediate feedback, he prefers face-to-face communication. 5 eupsy