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数学 高校生

最後の青い()のところで、右に書いてある感じで、係数を比較して答えを出すのは減点されますか? x=0とかπ/2とかを代入して計算するやり方でないとだめですか?

基本 例題 156 第2次導関数と等式 (1) y=log(1+cosx) のとき, 等式 y"+2e-1=0 を証明せよ。 |(2) y=ezsinxに 267 00000 に対して,y"=ay+by' となるような定数a,bの値を求めよ。 [(1) 信州大, (2) 駒澤大] 基本 155 指針第2次導関数y” を求めるには,まず導関数y' を求める。 また, 1), (2) の等式はともに 解答 x の恒等式である。 (1) y” を求めて証明したい式の左辺に代入する。 また,er をxで表すには, 等式 elog = pを利用する。 (2) y, y” を求めて与式に代入し、 数値代入法を用いる。 y=2log(1+cosx) であるから (1+cosx). 2sinx y'=2. 1+cosx よって y"=- 1+cost 2{cosx(1+cosx)−sinx(−sinx)} (1+cosxnia 2(1+cosx) (1+cosx) 2 1+cosx ex=1+cosx また, // = log(1+cosx) であるから 2 log M = klogM なお, -1≦cosx≦1と (真数) > 0 から 1+cosx>0 sinx+cos2x=1 [0] elogp=pを利用すると elog(1+cosx)=1+cosx 5章 22 2 高次導関数関数のいろいろな表し方と導関数 ゆえに よって 2e-= 2 2 y 1+cosx e2 y"+2e-=-- 2 + 2=0 1+cosx 1+cosx (2) y=2e*sinx+ecosx=ex(2sinx+cosx) y=2e2(2sinx+cosx)+e(2cosx−sinx) =e2x(3sinx+4cosx) ゆえに ...... ay+by'=aesinx+be2x(2sinx+cosx) =e2x{(a+26)sinx+bcosx} y=ay+by' に ①,②を代入して中 e2x \(e2*)(2sinx+cosx) 1 | +e(2sinx+cosx) (S (3sinx+4cosx)=e2x{(a+26)sinx+bcosx} ... ③ ③はxの恒等式であるから, x=0 を代入して 4=b 参考 (2) y=ay+by' の ように、未知の関数の導関数 を含む等式を微分方程式と いう(詳しくは p.473 参照)。 ③が恒等式⇒③にx=0, また,x=を代入して 3e=e" (a+26) これを解いて a=-5,6=4 このとき 2 を代入しても成り立つ。 (③の右辺)=ex{(-5+2・4)sinx+4cosx}=(③の左辺) 逆の確認。 したがって a=-5, 6=4 係数を比較して、 a+26=3. よって 4:6. a:-5. (1)y=log(x+√x+1)のとき,等式(x+10y+xy=0 を証明せよ。 156 (2)yee yayby=0を満たすとぎ 定数a,bの値を求めよ。 [(1) 首都大東京, (2) 大阪工大] p.275 EX131~133 airy.

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英語 高校生

これの答えが知りたいです。 できれば訳もお願いします!!🙇🏻‍♀️՞

when B を表すと 市内の when とも 第 02 章 Field 1 文法 受動態 Section 受動態の基本 主語と動詞が 「(主語) が・・・される」 という <受動〉 の関係なら、受動態 <be動詞+過 去分詞> を使う。 受動態の問題のポイント be 動詞は主語・ 時制に応じた形を使う。 when 容を表 節内の 134 This church ( en Biz ① built ② was built ) in the 12th century. ③ has built も Try! 1. This chair (break) by Mike yesterday. ④ was building [語形変化] 100 受動態の形は? 主語が This church で あることに注目 2. He ( ) while he was playing rugby. ① injured ② has injured (関西学院大) ③ may be injured ④ was injured 135 ① invented of The radio was ( ) Marconi and others. ② invented at T100 動作主を表すと きは? 動作主を表すときに用 いる前置詞は? ① with [100] Try! Who was this picture drawn ( ③ invented with ④ invented by )? 2 to ③ by ④ of ce 5 136 He ( ) Kei by everyone. 00 ① calls ② is called ③ is calling called SVOCの受動態はど ういう形になる? He と Kei の関係を考 よう Try! The outside of the castle ( I was painted black ② painted black ). ③ was black painted ④ is black painting 8 37 ① of ② by The child was taken care ( ③ by of ) him. ④ of by Try! He will ( ) by the whole class. ① be laughed at ② laugh ③ be laughing at ④ be laughed Section 10 いろいろな形の受動態 (札幌大) 138 Tokyo Skytree ( ) from here. ① can see ② can be seen ③ can have seen is can seen 動詞の受動態はど ういう形になる? take care of ... は群動 詞 動詞は1つの動 詞としてとらえよう T100 助動詞を含む受 動態の形は? Can は助動詞 助動詞 を含む受動態の形は? 9

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英語 高校生

He would say that God had given him a tail to keep the flies off, but that he would sooner have had no tail and no flies. soonerは「すぐに」って訳... 続きを読む

2 Animal Farm pig, with a wise and benevolent appearance in spite of the fact that his tushes had never been cut. Before long the other animals began to arrive and make themselves comfortable after Jessie and Pincher, and then the pigs, who settled down in the their different fashions. First came the three dogs, Bluebell, themselves on the window-sills, the pigeons fluttered up to the straw immediately in front of the platform. The hens perched rafters, the sheep and cows lay down behind the pigs and began to chew the cud. The two cart-horses, Boxer and Clover, came in together, walking very slowly and setting down their vast hairy hoofs with great care lest there should be some small animal concealed in the straw. Clover was a stout motherly mare approaching middle life, who had never quite got her figure back after her fourth foal. Boxer was an enormous beast, nearly eighteen hands high, and as strong as any two ordinary horses put together. A white stripe down his nose gave him a somewhat stupid appearance, and in fact he was not of first- rate intelligence, but he was universally respected for his steadi- ness of character and tremendous powers of work. After the horses came Muriel, the white goat, and Benjamin the donkey. Benjamin was the oldest animal on the farm, and the worst tempered. He seldom talked, and when he did it was usually to make some cynical remark - for instance he would say that God had given him a tail to keep the flies off, but that he would sooner have had no tail and no flies. Alone animals on the farm he never laughed. If asked why, he would among the say that he saw nothing to laugh at. Nevertheless, without openly admitting it, he was devoted to Boxer; the two of them usually spent their Sundays together in the small paddock beyond the orchard, grazing side by side and never speaking. The two horses had just lain down when a brood of duck-

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英語 高校生

これの解答が知りたいです。 お願いします!!

01 時制 Section 2 未来のことを表す表現 16 Aya ( ) "I'm sleepy" when she gets up tomorrow morning. 2 is saying 3 will say 4 said D say Tryl The teacher ( 100 未来のことを表 すには? この文を話す人は Aya がいつ “I'm sleepy" と 言うと考えているのだろ 57 ) angry if I'm late for his class. D been (2 is being (3) was 4 will be I am ( I be (2 going to (3) see will 作、 の形 であ day Try! Are you ( I went (2) come 18 Mark ( I has arrived 3 is arriving E Try! He ( ) call her this evening. ) go to see your family this weekend? 3 will cho 4 going to ) at Narita airport tomorrow. 2 arrived 4 has been arriving ) at the hotel tomorrow morning. moraload ( これからするつもりの こと, そうなりそうな ことを表すには? がこれからするつもり であることを示すには? 未来の予定を表す動 詞の形は? tomorrow 「明日」に 注目 I will be arrived 3 must have been arrived 2 is arriving 4 is used to arriving gnime (名古屋工業大) pand) lism of ( I ( ) in Europe next week. I was staying 2 has stayed 3 will be staying ④stayed Try! Patricia ( 1 has waited 2 was waiting 110 Brian was ( his name. 1 on ) an earthquake before he came to Japan. about 3 with 4 off ) for you at the coffee shop after school tomorrow. 3 wait 4 will be waiting E 「まさに··· すると to get on the bus when his mother called nood)だ」 という 〈差し た未来> を表す形 「Brian はまさに・・・ ところだった」とし 味を表せる選択肢 ぼう 未来のある時点での 進行中の動作, 未 の予定を表すには? next week 「来週」 注目 Try! 1. Ken was about to (call) Yumi when she came into the room. of ( 2. Emily was ( Dabout 2 for 語形変化 ) to go out when the telephone rang. 3 used 4 so 120 Batlow used and Jinw low boob yulW Thule fonds nol gd bongam bai ( 金沢工業大) M

解決済み 回答数: 1
英語 高校生

問題の答えを教えてください🙇‍♀️ お願いします。

1 Fill in the blanks. 1) Mr. Suzuki( 2) I ( 3) ( ) in the teachers' room because he is in the classroom. ) sick in bed, so I ( )go to school yesterday. )Yui have a part-time job on Fridays? - Yes, she ( ) she? 1,2) 2) テストのことで緊張しないで 3) 明日一緒にテニスをしましょう。gn 4) ルーカスはなんて速く走るのでしょう。 Oh 5)なんておいしいドーナツなんでしょう。 4) Your sister plays badminton, ( 5) ( ki) is your birthday? ② Fill in the blanks. - My birthday is September 1. 1) テレビゲームをする前に宿題を終わらせなさい。 一わかったよ, お母さん。 )your homework before you play that video game. ) ) ( OK, mom. (3.4) ) nervous about the exam. ) tennis together tomorrow. ) Lucas runs! ) delicious doughnut! ( ③ Fill in the blanks. 1) ( T2) ( ( know Aoi's address? you buy it? No, I ( .(知っていますか) ― 3) Haruto doesn't live in Kyoto, ( ) ( 4) ( ( ) to karaoke after school? Jim and Riku( I bought it online. (どこで) online 「ネットで」 ). (だれが行ったの / ジムとリクだよ) ? (住んでいないよね) 5) ( ) you like coffee? - ). ), I ( (好きじゃないの? / いや, 好きだよ) 6) ( )play volleyball in the gym. - OK (バレーボールをしよう) arbest 6 med YM Put the Japanese sentences into English. 1) アヤとサキは大阪出身ですか。 2) 先生が話をしているときには静かにしなさい。 intences into English 3) これはあなたの自転車ですか, それともケンタの自転車ですか。 from Osaka? V yebot isang when the teacher is talking. で Is thisパンのとてもいい whas bed of op III yqesia m 4) だれが教室のかぎをかけましたか。 (lock) mus 5) おなかがすいていないの? - うん、すいていないんだ。 * Give It a Try (S-) 685- ? heang bomut and trigil orTy A what would you say? om airT 1) Your friend is making a loud noise. You are angry about it. Don't ini lita nego bayate are ent 2) You want to play basketball with your friend after school. elde ne pnitearn art prisub inelia genrol after school. B Ask your old friend from junior high school about his/her high school life. 1) 通学手段: get to school? 2) クラスの人数: in your class?

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