三角関数です。 波線部(5行目と7行目)で最大値と最小値が逆転する 理由がわかりません。 ご回答よろしくお願いします🙇‍♂️

π 関数 y=3sin'0-4sinlcos@-cos'0 (0s0s)の最大値, 最小値とその ときの0の値を求めよ。 【類小樽商大) CHARI Q GUIDE) sin0と cos0 の2次式 角を20に統一して rsin(20+a) の形を作る 1 半角の公式と2倍角の公式を用いて, 各項を sin20または cos 20で表す。 2 asin20+bcos 20 の部分を, rsin(20+a) の形に変形する。 3 最大値,最小値を求める。 このとき, 20+α のとりうる値の範囲に注意。 田 解答田 y=3sin°0-4sindcos0-cos' 1-cos 20 =3- 1+cos20 sin20 -Lecture の ① を代入。 2 2 2 =1-2(sin20+cos 20)=1-22 sin(20+ 4 ) ー1-2/2 sinx は、 sinx が最大のとき最小, sinx が最小のとき最大 となる。 なお,最大,最小が調べ やすいように、 -2sin20-2cos 20 π π 0S0Sより,20+-2+であるから、yは であるから,yは 4 4 4 20+、5 itrh -π すなわち 0= のとき最大値 5 1-2/7anー1-/F(-)- 5 4な 1-2/2 sin -元=1-2V2 4 =2/Z sin(20-) 0 ix =2/2 sin(20- 3 π π と変形してもよい。 20+= すなわち 0= のとき最小値 4 2 1-2/2 sin-=1-2/2-1=1-2,2 2 F をとる。 に 二

発音の問題なのですが(自分はどちらも間違っています) どうやって正解を選んだら良いのかわかりません。全部発音はなんとなくわかるものの、 たとえば36だったら　ボール　で　お　のような母音ですが　タオル　の方は　お　の音がないような気がして4にして間違っていました。

34. The eny 35, 36. Which of the following pairs of words do not have matching vowel Sounds(do not rhyme) when spoken? Answer by filling in the corresponding slots under the numbers (35) and (36) on the mark sheet. 35. 1. bird - heard donm 2. chew - flew nper obne 3. grown - crown 4. own - Sewn indo 36. 1. allow - arrow 2. charity - parity 3. lighting - writing od bluow anwollot onit lo t 4. towel - bowel bnogmo sb nitn yd n apcor

このItって何を指しますか？

Part 3 ロンドンの自転車シェアリングの利用者はどのような感想を述べているのでしょうか。 Bicycle sharing is also spreading (around the world). (Recently), some cities 自転車 広がっている[現在進行形] and organizations have started providing bicycle sharing services. 組織 ~を提供し始めている[現在完了] Let's look at the case<of London).The city government has been operating ~を運営している[現在完了進行形] 事例 政府 the service(since 2010).It has built hundreds of bicycle stations (all over the ~を設置した[現在完了] 何百もの ~中に city). (At any of these stations), a bicycle can be borrowed and returned, One 借りたり返したりできる[助動詞+受身] ns aetp どの~でも regular user <of this service》 said, “This city has heavy traffic jams/It took 定期的な 利用者 交通渋滞 more than30 minutes to get to my office by bus. But now, it takes less than 20 ~より少ない(→more than It takes+時間+to不定詞 「~するのに(時間)かかる」 Shob minutes, (In addition), riding a bicycle is good (for my health), And I think it good さらに あまりお金がかからない 節約する [that this service costs less moneyl. I can save 28 pounds (every month)." think+it+形容詞+that S+V …, 「SがVするのは形容詞だと思う」 beeros It 三

4の問2を詳しく教えて下さい

cars TV. People who enjoyed singing even used rental cars as a practice space. 2ラ used our cars in more ways than we thought, said a perSon in one car rental re many rental cars from different car-sharing companies all over large cities in at makes them easy to find and get to. People can find them quickly with an*apn are also not so expensive to use for a short time. People can rent a car for about an hour. () That ( be / to / looking / may / someone / good) for a quiet place in a sive city with few private spaces. 距離 explain:説明する The Guardian newspaper : ガーディアン (新聞社) charge: 充電する リ つ内容に合うように、 次の a,bの ( ) に入れるのに最も適当なものを1つずつ選び、 さい。 ar rental Comnanies are surnrised to find

vision quest1 standard homeworkなんですがここのページの答え誰か教えて欲しいです。 ならべくはやいととても有難いです🙇🏻‍♀️

1 日本語に合うように, [ ]内の動詞を用いて英文を完成させなさい。 口 1. スポーッを観戦するのはわくわくする。 Itis exciting [watch] 2. それはお気の毒に。 that. [hear] T'm ロ 3. 彼女の目標は慈善事業のための資金を集めることだ。 money for charity. [ raise ] Her aim 4. 私たちは彼が元気だと知ってうれしかった。 that he was fine. [know] We were pleased 5. 私のひいおじいさんは90歳まで生きた。 My great-grandfather lived ロ 6. リサは試験勉強をするために, 夜更かしした。 90. [ be] Lisa stayed up late for the test. [ prepare ] 2 [ 1内から適切な動詞を選び, 不定詞に変化させて下線部に入れなさい。 総合 ロ 1. She grew up a doctor. 2. My father needs smoking. 3. Hot drinks help our body warm. 4. There is nothing in the fridge. 5. I'm very happy with you. 6. IS necessary for every student. [be/drink /keep/stay/study/ stop] 3 左右の語句を適切につなぎ, 英文を完成させなさい。 BC 1. We have some work to catch the last train. 2. Iwoke up to finish today. 3. Ineed a piece of paper to say such a thing. 4. She hurried to the station· to write down his phone number on. 5. You must be angry to find that I had gone past my swp

（1）が2rになるのは分かるのですが、（2）の体積の求め方が分からないので教えてください！

s5301.gwotrio 6 立方体ABCD-EFGHがある。半径rの球の内側にこの立方体の8つの 頂点が接しているとき,次の間いに答えよ。 (1) 線分AGの長さは ネ である。 D C 0 sharie wobrig edi tlond olduot m slgosq baglent aciy sui! nol sial A B (2) この立方体の体積は フVハ 98UR -yである。 ヒ G H 9 |フトホ]は使用しません。 3 F トに入れるのをご g aoun ap10 aune

全く和訳できません｡

QHint attention from their friends and family. Also, people looking at 才ば Read the passage and answer the questions. A selfie is a Ophoto of a person ora group of people taken by m a person in the photo. Smartphones make it easier for people to take photos and they play a big part in the popularity of taking selfies. A device called a 'selfie stick' was created, that allows 5 people to take selfies more easily. And now people even use drone dróun drones to take pictures of themselves from all kinds of places. se 2 People enjoy taking selfies to show what they wear and how e DneiR. bmoie tuot,o19i they look. Young people often share their selfies on social networking services. When someone posts a positive comment 10 about a selfie, it can make the person in the selfie feel more confident. For young people, selfies are an easy way of expressing emotions and connecting with others. emotion imóuan connect with However, not everyone likes the new trend of taking and sharing selfies. ③ Many people don't feel comfortable looking at 15 other people's photos. They feel that those who post their selfies ~とつながる 44 eninelt on social media only think about themselves and just want 19 1600l them may feel sad and 1onely when they are not included n photos of family and friends having fun. 20 Posting selfies on social media can be a fun way of sharing8 personal experiences and feelings. But when we do D it, think about the effect our photos may have on our friends and family. we must

ふたつ目なぜwhoseなんですか？

1「~する(人)」 Audrey Hepburn was an actress who did alot of charity work. I applaud all the baseball players whose careers have encouraged young children. The scientist who [whom] I admire the most is Stephen Hawking. >目的格の who [whom] は省略されることが多い

ふたつ目なぜwhoseなんですか？

1「~する(人)」 Audrey Hepburn was an actress who did a lot of charity work. I applaud all the baseball players whose careers have encouraged young children. The scientist who [whom] I admire the most is Stephen Hawking. >目的格の who [whom] は省略されることが多い cot

ふたつ目なぜwhoseなんですか？

1「~する(人)」 Audrey Hepburn was an actress who did a lot of charity work. I applaud all the baseball players whose careers have encouraged young children. The scientist who [whom] I admire the most is Stephen Hawking. >目的格の who [whom] は省略されることが多い donA 2「~する(こと·物)」 1odpid ofaoso