23.1 この類の問題では=kと置いたときに(k≠0)といつも書いているように感じたのですが、この問題でk≠0と置かなくていい理由はなぜなのでしょうか？？

城大 2 bo コブ 基本例題 23 比例式と等式の証明 a²+c² ab+cd a²-c² ab-cd (1) (2) 指針 (1) 比例式・ a b 解答 a b a のとき,等式 a C 1/6=10=1のとき,等式atc = d b+d 【CHART 比例式は=kとおく (1) 11k とおくと b a²+c² ゆえに a 練習 23 よって a=bk, c=dk となり, 消去後の計算がらくになることが多い。 (2) も (1) と同じ方針で進める。 よって (1) a²-c²b²k²-d²k² k²(b²-d²) ab+cd b²k+d²k_k(b²+d²) ab-cd b²k-d²k k(b²-d²) b2-d2 (AS)+(RE) as S C = (2) com/ok とおくとa=bk,dk,e=fh d f bk+dk_k(b+d) =k ゆえに a+c b+d ad C も条件の式で、例えばc= b a²+c² ab+cd a²-c² ab-cd a+c+e b+d+f a+c b+d a b = || = a+c+e b+d+f a=bk, c=dk ARLE b²k²+d²k²_k²(b²+d²) b²+d² = b²-d² b+d が成り立つことを証明せよ。 a+c+e b+d+f = が成り立つことを証明せよ。 p.40 基本事項 ③ = a として消去できるがんとおくと, b+d bk+dk+fk _ k(b+d+f) = k b+d+f b+d+f b²+d² S 0000 31① k²で約分。 んで約分。 <A=C, B=C⇒A=B b+dで約分。 検討 分母 ≠0 で考える この種の問題では,断りがなくても結論の式を含めて,分母に出てくる式はすべて 0 でないと 考える。例えば,本間の (1) では, b=0, d=0, -= 0, ab-cd=0 (2)では,b=0,d=0. f = 0, b+d≠ 0, b+d+f=0 と考えてよい。 CHCES b+d+fで約分 d+S =($A=C, B=C⇒ A=B SLEG * 0-5 old のとき,等式 ab(c'+d2)=cd(a²+62) が成り立つことを証明せよ。 batac batactre

お願いします

EXERCISES 1 Fill in the blanks. Use which/ when /where/ why/how. 1) これは両親が新婚旅行で泊まったホテルだ。 This is the hotel where my parents stayed on their honeymoon. 2) うるう年は2月が29日ある年だ。 A leap year is a year ( when February has 29 days. 3) うるう年は4年に1回しかやってこない年だ。 I A leap year is a year (which only comes around once every four years. 4) グレッグがテニス部をやめた理由は明らかではない。 artasovehari seriellgmoode maile.es The reason Greg quit the tennis team is not clear. why 5) 私はよく英語の歌を聴く。 そうやって、私は英語を勉強している。 Yometerror I often listen to English songs. That's how wo) I study English.. 2 Complete the sentences. Use when/where/why. Add a comma if necessary. 1) Last Saturday was when I moved into a new apartment.(4-2, 3) 2) Jill lied* to me. That's why lie ｢うそをつく」 3) How far is the hotel from where when I'm angry at her. we are now? I left for Paris. 4) I was in Rome until last Sunday. 3 Put the words in the correct order. Use when/ where / why / how. 5) Could you wait until next week, (so busy, won't, I, be)? → when I won't be so busy 1) (we, the beach, played) was very beautiful. The beach where we played 2) Last night I had a bad dream. (I, that's, didn't, sleep) well. Last night I had a bad dream. The reason I don't eat egg 10 ode Flame ym sezoqgo orlw yatam was very beautiful. That's why I didn't sleep 3) I still remember July of 2014, (I, a week, spent) in Okinawa on my school trip. I still remember July of 2014, when I spent a week in Okinawa on my school trip. (became, we, friends, that's). 4) We met at the summer camp three years ago. We met at the summer camp three years ago. That's why we became friends. (3) 私の父が勤めている銀行は私の学校の近くにある。 The bank where my father works (▶4-1) Give It a Try A Put the Japanese sentences into English. 1) 私は教科書を何度も読んだ。 このようにして, その試験に合格した。 I read the textbook many times. That's how I passed the exam 2) 私が卵を食べない理由はアレルギーがあるからだ。 (「~にアレルギーがある」 allergic to ~) is that I'm allergic to them. ●4) 私は、兄が暮らしているロンドンに行きたいと思っている。 of bryant I want to go to London, where my Write about yourself. 1) I remember the day when we first met. why she can't 2) I want to know the reason PS swim well. is near my school. brother lives

空欄の所と間違えているところ教えて欲しいです🙇‍♀️🙏

6 分詞 (LESSON 14-15) 評価問題 氏名 ()から適切な語句を選びなさい。 ( 3点×4=12点) (1) This is a picture of a bird (drink/drinking/drunk) water from a pond. (2) We were (surprise/ surprised/ surprising) at her colorful dress. (3) The old man sat on the sofa with his legs (cross/crossing/ crossed). (4) My sister had her hair (cut/cutting/ to cut) by my mother. [ ] の動詞を適切な形にして、英文を完成させなさい。 to music. (1) Mike reads a book, listening (2) They left the gate Closiny all day long. (3) The picture (4) The boys kept Painted by Emma is very beautiful. Playing the computer game for hours. 13 ( )の語句を並べかえて、 英文を完成させなさい。 ただし、 下線部の動詞は適切な 形の分詞にすること ( 4点×5=20点) (1) (someone / in / there / of / is / front / wait) the door. There is someone wailing in front of (2) (got/cell phone/I/repair/my) yesterday. ( 4点×4=16点) [listen ] [close] [paint] [play] I got refailed my cell phone (3) We (the shop/ be baked / we / apple pies / at ). We (4) (a new restaurant/found/drive/he/ the car,) near his home. Priving the cat he found a new bestrant the door. /100 yesterday. near his home. (5) Ann watched (her cheeks/run/the movie / tears/down/ with). Ann watched the horie running dan with her checks teats ④4 次の各文の誤りを訂正して、全文を書きなさい。 (1) その眠っている赤ちゃんは私の息子です。 The baby sleeping is my son. The sleeping baby is my soul (2) 先生は彼の生徒たちに囲まれて座っていました。 The teacher sat surrounding by his students. the surrounding teacher sat by his students (3) お父さんに叱られたので、その女の子は泣き始めた。 Scolding by her father, the girl began to cry. Scolding by her father the girl began to ch (4) 彼女は車をそのホテルに駐車したままにしておきました。 She left her car park at the hotel. 5 次の日本語の意味に合う英文を作りなさい。 (1) 彼女は皿を洗うのに忙しかった。 (6点×4=24点) she was busy washing the dishes (I で始めて) I heard my brother singing the song (his で始めて (2) 弟がその歌を歌っているのが聞こえました。 (3) 彼のスピーチは退屈でした。 His speech was boring ( 6点×3=18点) 6 あなたが何かをしに行って, そのとき感じたことなどを3~4つの英文で書きなさい。 (5点) 会話の最後に入る気持ちを自由に考えて書きなさい。 A: The university entrance exam is coming up soon. B: I'm getting nervous. I don't know if I can pass or not. A: (5

早急です！！！ 和訳と答えお願いします＾＾

(9) It is only 6 o'clock in the morning. She ( might 2 1 may still asleep may be sleeping 4 might ) at this time. have been sleeping still asleep

これ至急教えてほしいです！よろしくお願いします

3 各組の英文が同じ状況を表す文になるように,空所を補い, 英文を完成させなさい。 (1) Harry said that he would stay there until the next day. Harry said, "( )( (2) Emi said to me, "I didn't eat breakfast this morning." Emi ( ) me that she ( ) ( Jexlporis ( (3) The waiter said to us, "Are you ready to order?" The waiter ( ) us ( ) ( sexlood (4) Karen said to me, "Who are you waiting for?" Karen ) me ( lood 997 (5) I didn't hear the news until quite recently. It ( ) ( JAR (6) She will come back soon. It ( ) ( poltida ert'nden beisool z'Yİ ( ) stay here until ($))." Dečaka ) ( over 06) ) breakfast ( besumm ) (ed. ) tasinovnos ( e) quite recently () I heard the news. ready to order. ) waiting for. 23210A3X- ) morning. eben abril CD (5) she comes back.HAR405 (1) sled kid

隣に座っていた女性はとても眠そうだった。 The woman （ ）（ ）（ ）next to me looked very sleepy. 彼が今使っているコンピュータは新型だ。 The computer （ ）（ ）（ ）using now i... 続きを読む

288から303の解説を教えていただいたいです…(294と300は大丈夫です)

しまった。 st few / hardly / of) I became < 東邦大 > For years. 4 whether ause/down/ upon). lest study hard. while <京都学園大 > with <浦和短大 > <東京電機大〉 ring them back within a <立教大 > 〈 南山大 > could not pass it. ng, he kept making <東海大 > 094 095 096 295 296 ( ) he likes it or not, you must teach him how to handle it. What 2 Who 3 Whenever 4 Whether He ran ( (1) as 297 It was ( 000 1 very 299 ) quickly that I couldn't catch up with him. 2 too 3 so ) a bad snowstorm that they shut the airport down. 3 such 4 too SO 298 I opened the door quietly ( 1 so that 2 unless 4 more ) the teacher wouldn't notice me. 3 otherwise 4 because of 〈神奈川工科大 > 300 寝坊するといけないから目覚ましをかけておきなさい。 <1語(句) 不要) (in / the alarm/you/ don't/ case / set) oversleep. 301 ( ) you're a grown-up, you must stop this childish behavior. 1 Now that 2 As long as 3 Even though 4 In case <神奈川大 > 302( ) he made up his mind to go, there was no stopping him. Though 2 Whether 3 While 4 Once Our grandmother never travels by air ( ) she will have a heart attack. in case that 2 so that 3 in order that 4 for fear that <九州産大 > < 芝浦工大 > 〈 広島工大 〉 <日本大〉 097 <駒澤大 > 098 <九州産大 > 303 As long as I know, prices in Spain are much lower than those in Japan. 2 0 < 松山大 > 099 100

教えて欲しいです

ます。 と違う〕 01-403, 407-40 3 日本語の意味になるように,空所を補い, 英文を完成させなさい。 hine ade (1) そろそろパーティーの準備をする時間です ono albis ns bast bart sta jarb am blar ste It's about ( ) we ( ) for the party. The walut A105*7**) 200 (2) もしあなたがいなければ、私は日本語を勉強していないでし () you, I()) Japanese (3) ジャックのホームランがなかったら, 私たちは試合に負けていたでしょう。 (didn't hear) it (w D AVEIRROCAS COS 612 B) (ute obave) (bine orie) (date of) Jack's home run, we would needbedw\hitehuient((+人☆ealak that [][][] XXTH S&O) (R) omosed of botnew I tadw sm hasles of have lost the game.

4.5、どちらかでも教えて頂けると幸いです🙇‍♂️

□□4)以下の文を enough を用いて1文で書き換えよ。 / for us This room is very large, so we all can sleep in it. □□5) 以下の日本文を英訳せよ. 私は彼女に信頼できる相手を選ぶよう説得した. (someone, rely を用いて)

The dog that is sleeping under that tree is Ken's. あの木の下で眠っているイヌは健のイヌです。 の、that tree is Ken's.の部分のthatは同じく「あの」という意味があるtheと書いても大丈夫ですか？ 教えて... 続きを読む