回答ではtanが無くなっているのですがなぜ回答のような式になるのか教えてください

*291 等式 sin 2ctana=1-cos2a を証明せよ。

教えてください！！

Review 5 (Point 131~157) 形容詞の語法, 副詞の語法,比較 2 次の英文の下線部には誤っている箇所が1箇所ある。 その番号を選び, 正しい形に直しなさい。 bored because the same people do the same things day after □ 1. Country life seems so day. 〈立命館大〉 132 Of the two cars, the red one is thecheapest to buy. 3 <高崎経済大〉151 □ 2. □ 3. Alice said that the movies by Hayao Miyazaki were more gexcited than Disney films. 3 〈立命館大 132 ③ 次の日本文の意味になるように、( )内の語または語句を並べかえて適切な英文を作りなさい。 □ 1. 彼女はできるだけ多くの質問に答えようとした。 She (answer/questions / tried / as possible / to / as / many). □ 2. その本は、読む価値はないと思う。 26. (worth/I/ the book / don't find / reading ). 148 <東邦大 > 137 garo 流通経済大 > 3. ニューヨークの冬は東京の冬よりもはるかに厳しい。 〈北海道薬科大>150 The winters of New York (severer / of / than / are / much / those) Tokyo.T A □ 4. この新しいコンピュータは他の製品の半分の電力しか使わない。 This new computer uses only (as / as / power / much/half) the other models. 30. WEB TOLO 7. それは私が今まで観た中で一番いい映画だ。 That is the (movie / I / ever / that/ have / best / seen). loan yM OLC <松山大) 147 〈西南学院大> 153 ■ 5. スイカはトマトと同様, 果物ではないと思う。 オム In my opinion, (is / than / a watermelon/no/atomato / a fruit / more) is. 北山 <近畿大 > 131 ■ 6. うっとうしい客が, 不満そうな主人に対して多くの意見を述べた。 An annoying guest made (the / number / of / to / comments/a) frustrated host. C Act 15 <札幌大>

中3年生のA mother'slullabyというところをやっているのですがQ&Aの答えが全く分からないので教えてください🙏

(-) 1. Barack Obama was the first sitting U.S. president to visit Hiroshima. (F)2.Obama visited the museum in Hiroshima after the speech. (T) 3. Obama folded paper cranes himself. Q&A 1. When did Obama visit Hiroshima? 2. How many paper cranes did Obama leave at the museum? 同品 3. According to the museum's guest book, what does Obama want to pursue? 3. 本文を読んで,あなたの感じたことをこの「木｣に伝えるとしたらどのようなことを伝 <例>にならって英語で書きましょう。 <例>

教えて下さいお願いします🙏

4. 図のような抵抗 R, 静電容量C, インダクタンスしか らなる回路で,電源電圧Eおよびその角周波数ωが一定で ある場合, Rが変わってもRを流れる電流が一定であるた めの条件を求めよ。 またそのときの電流はいくらか。 ただ しL,Cは無損失であるとする。 A E Y G

教えて下さい🙏

4. 図のような抵抗R, 静電容量C, インダクタンスしか らなる回路で, 電源電圧Eおよびその角周波数ωが一定で ある場合, Rが変わってもRを流れる電流が一定であるた めの条件を求めよ。 またそのときの電流はいくらか。 ただ しL,Cは無損失であるとする。 A E G

自分の回答があっているか不安なので、４第答えて頂きたいです。 自分の回答はこちらには見にくくなってしまうため書いていません。

Working with words 1 Complete the review of a hotel. Use the answers to complete the puzzle and find the European city where the hotel is located. HOTEL REVIEWS This first-class hotel and conference centre welcomes guests from all over the world. Its 1 facilities are second to none. There are 300 en-suite rooms and five apartment suites. For business guests, it has ten meetings rooms, two of which are big enough to be used as halls. 2 The hotel can also organize events such as guided 3 around the town centre for conference 4 and hotel guests who enjoy a bit of 5 For food-lovers, the four-star restaurant serves regional 6 every evening. All in all, this is a top-class for business and for pleasure. 7 6 1 A fa 0 il i t 1 e S 2 Replace the words in italics (1-8) with the phrases from the list. Add a pronoun if necessary. you hotel? look around meet up with show someone around 3 freshen up eat out pick someone up check in drop someone off Pedro It's difficult to park here. Can I stop and leave drop you off in front of the 1 Sabrina Sure, I'll register 2 and then I'd like to have a wash, and change my clothes 3 Pedro If you like, tonight I can give you a tour of 4 the old city. We could by eat in a restaurant 5 the port. Sabrina That sounds great! I'd rather walk about and See 6 the city than stay in my hotel room. Pedro I'll collect you 7 8 8.30 p.m. We'll see Alberto and Maite in the main square. at Business communication 1 Put the words in the correct order to make expressions. 1 meet person / it's / nice / to / you / in It's nice to meet you in person 2 have / did / finding / you/ any / trouble / us? 3 worry / signing / don't / about / in 4 through / programme / I'll / run / today's 5 this my / come / way / to / office 6 need building / you'll / this / enter / badge/ the / to 7 reception / sure / make / in / at / you / sign 2 Raymond Roberts has an appointment with Janet Rose. He has just arrived at HBG premises. Complete their conversation with the phrases from the list. let me take your bag can I get you a drink Welcome to HBG publishing I thought you could catch up again how was your journey You'll need this Make sure you 1 Raymond Good morning, I'm here to see Janet Rose. Janet Hello, I'm Janet. ¹ Welcome to HBG publishing. Raymond It's nice to meet you in person. Janet Likewise. So, 2 Raymond Well, there were traffic jams on the motorway and I got a little bit lost in the industrial park. Janet Don't worry. That happens to everyone. Anyway, 3 - I'll store it in my office. Raymond I'll hang on to it if you don't mind. It's got all my stuff in it. Janet Well, if you change your mind just tell me. And 4 Raymond Thanks. I'll have a cup of tea, please. Janet Sure, I'll just get that for you in a second. First of all, I'll run through the schedule. 5 start by meeting Karen Rankin this morning and then we'll 6 at lunchtime. Raymond OK. And will I see Malcolm Briscoe? Janet Yes, in fact he's joining us for lunch. One other thing. security pass. at all times. 7 It's your 8 wear it

わからないので、よろしくお願い致します。

Questions 34-37 refer to the following notice. If you require assistance with something while you are in town, do not 34. on its services. the collection and sending of parcels, The staff there are generally responsible 36. restaurant reservations, arranging vehicle hire, purchasing tickets for events and even giving street directions. 34. (A) The hotel offers guests a wide range of facilities. Simply --- #9 on the phone in your room will put you in touch with one of the concierge 37. staff. If you would like to drop by the concierge desk in person, you will find it on your left when you enter the hotel lobby. (B) The concierge desk is attended 24 hours a day. (C) There is a tourist information center at the station. (D) Thank you for choosing to visit beautiful Miami Beach. 35. (A) attempt (B) hesitate (C) admit (D) tend A B C D A B C D 36. (A) in (B) to 35. (C) with (D) for to rely 37. (A) dialed (B) dial (C) dialing (D) dials A B C D A B CO

英作文の添削をお願いしたいです！解答例は2枚目に載せました。 私の回答で文法的や意味的に間違えてるものを教えていただきたいです。お願いします！

本文に合う英文を書きなさい。 (1) 妹と私は子どものころ、 よく家の近くの神社でいっしょに遊んだものだ。 When my sister and Ⅰ were children, we used to play at the shrine near our (2) ご注文いただいた本を明日までにお受け取りになっていない場合はどうか私ともにお知らせください。 house Togetho. Could you tell me know if you haven't received the book. you Lordered tomom (3) 彼らは3年の結婚生活を経て子どもを授かった。 After they had been married for three years, they gave a child.

上の式を例えば下の式のように書くのはNGですか？

lim x.x 9²-00 lim x→00 X. lim x X-00

四角1四角2の答えを教えて頂きたいです！お願いします😭

まっていた ( 内の語句を並べかえて, 英文を完成させましょう。 1. My father bought some yakitori for me, but when he came home, (dinner / I / had already / finished). 2. We (about / worried / had / been / him / until) he showed up. He finally arrived three minutes before the train left. 3. I (a letter / a foreign country / never / sent / had / to) before I wrote to him. 4. We (for / walking / had / four hours / been) when we finally reached the top of the mountain. 5. I didn't (gone /home/she/know / had / that). I thought she was still here. 6. (will / my little brother / have / asleep / fallen) by the time I get home. 2 [ ]に与えられた語を適切な形に変えて英文を完成させましょう。 1. When the guest came, she cooking. [just finish] 2. I plan to go to the museum every month. By the end of the year, I there more than ten times. [be] 3. They かった : 経験 三んでいた していた each other for five years when they got married. [know] esson 4