高校数学です(F-115) 答えと私の答えの符号の向きが違っててどこが間違ってるのかがわかりません。 解説では両辺に−1をかけて符号の向きを逆にしているのですが、私はせずにそのまま計算しました。それだと答えが合わないのでしょうか。 どなたかよろしくお願いします🙇‍♀️

例題 115 三角不等式(2) *** 08.08=6 0°0≦180°のとき, 次の不等式を解け. 例 1 2cos2d-cose<0 8cos' <3+6sin 考え方 (1) coset とおくとtの2次不等式である. 0°≤0≤180° T -1≤cos 0≤1 (2)sin'+cos'0=1 を用いて sin だけの2次不等式にする. 0° 180°では 001 に注意する. 解答 (1) 2cos2-cos0<0 ......① Cost とおくと,0°180°より, t1....... ② にして E おき換えると > abo また,①は, 212-t<0 t(2t-1) <0 [等式 08120 より, o<t<1/1/...③ 3 y4 したがって, ② ③から, 20<cose< 60°1 nst (8) ③②を満たして る. よって、0°0≦180°では, 60°<< 90° 右の図より, -1 0 x x= 2 (2) 8cos' <3+6sin より, 8(1-sin20)<3+6sin0 8sin20+6sin0-5>0 (4sin0+5)(2sin0-1)>0 ここで, 4sin0 +5>0より, 2sin0-1>0 YA 1 sincos^0=1 利用 慣れたら,おき様 ないで因数分 きるようになる。 5-10 -1--1 したがって, sin0 > 2 150° 30° よって, 0°≧≦180°では, 右の図より, 30°< 6 < 150° 0 1 X sin 0≧0より、 C) MIN4sin0+5>0 Focus 三角方程式・不等式 sin, cos の種類を統一する 180°では, 0≦sin0≦1, -1≦cos01 0° tan 0 はすべての実数値 (tan 90° は定義されない)VON

英検2級の英作文の添削をお願いいたします 文法的におかしなところがたくさんあると思いますがよろしくお願いします🙇🏻‍♀️

4 ライティング They codid get part-dme jols in ●このリス ★英文は 第1部 第2 ② No.30 いてく 第1 以下の TOPICについて、あなたの意見とその理由を2つ書きなさい。 POINTS は理由を書く際の参考となる観点を示したものです。ただし,こ これら以外の観点から理由を書いてもかまいません。 語数の目安は80語~100語です。 解答は、解答用紙のB面にあるライティング解答欄に書きなさい。なお,解 答欄の外に書かれたものは採点されません。 ●解答が TOPIC に示された問いの答えになっていない場合や, TOPIC から ずれていると判断された場合は、0点と採点されることがあります。 TOPIC の内容をよく読んでから答えてください。 TOPIC Today, some customers ask delivery companies to put packages by their doors instead of receiving them directly. Do you think this kind of service will become more common in the future? POINTS Convenience Damage Security about artists and ercight d

数学lの連立不等式の問題です！ winstep（進研模試の過去問みたいです）　 ①の連立不等式を解くことまではできるのですがそれ以降がわかりません！ 解説をしていただける方お願いします🙇

不等号の向きが変わる に注意する。 αキ とする。 次の連立不等式が解をもたないような実数の定数αの値の範囲を求めよ。 -3x+6≧2x-4 ① Tax ≥1 ②

答えは、4です。will beには継続の意味が入ってないと思うのですが、もし選択肢にwill have beenがあったらwill have beenではダメですか？

) under construction. 3 基本 Until next summer, the pool 1 was 3 had been 2 has been 4 will be

超至急　英検二級ライティング採点お願いします　 理由は　盗まれる可能性があると食べ物がぐちゃぐちゃになってしまうで描きました　英語が苦手なので細かめに解説してほしいです

(38) Which of the following state 1 One of the most famous printing companies in Venice established in 1494. was has 2 The number of stores in Venice making handmade booksh 3 Olbi holds an annual exhibition in Venice to display the work increased since 1962. `of his students. 4 Laws to stop international trade were introduced in Venice in the Middle Ages. 1 このリ ★英文 第1部 第2部 2 No. 30 第1 4 ライティング ●以下の TOPICについて, あなたの意見とその理由を2つ書きなさい。 ●POINTS は理由を書く際の参考となる観点を示したものです。 ただし、これら 以外の観点から理由を書いてもかまいません。 ●語数の目安は80語~100語です。 about ●解答は、解答用紙のB面にあるライティング解答欄に書きなさい。なお、解答 欄の外に書かれたものは採点されません。 aniinity S ●解答が TOPIC に示された問いの答えになっていない場合や, TOPIC からずれ ていると判断された場合は, 0点と採点されることがあります。 TOPIC の内容 をよく読んでから答えてください。 No.1 No. TOPIC Today, some customers ask delivery companies to put packages by their doors instead of receiving them directly. Do you think this kind of service will become more common in the future? POINTS Convenience ● Damage ● Security 40 40 In being lost No. No N

高校英語です。 画像の英作文の添削お願いします🙇

11 次の文を英語にしなさい。 (1) 海外でしばらく暮らしてみることは,日本を違った角度から見直すよい 機会となる。 To live abroad is 違った from [青山学院大 * ] of vie a good chance that you review from a different point of view about Japan (2)この国ではふつう, 人に会ったとき, 握手をするかわりにお辞儀をしま す。 [日本女子大†] In this country, when you meet people, you usu you usually bow instead of shaking hands. (3) 若者は世間からどう見られているかあまり気にとめないものだよ。 Young people don't mind how to think from other people. お辞 bow バウ 手を 世間 →他 [鹿児島大 *†] (4) 音楽を聴くのが好きな人が上手に演奏できるとはかぎらない。 Those who like listening to music, can't always playing well it. [ 日本女子大 ] (5) きちんと時間を守る人もいれば、約束の時間にほとんどいつも遅れる人 もいる。 Some people are always come on time, while others come late. [愛知] ~を care きち 時間 pun on be punctu

高校英語です。 画像の英作文の添削お願いします🙇

2 次の文を英語にしなさい。 (1) 血液型は性格と何らかの関係があると信じている日本人が多い。 Many Japanese think that their blood type have something to do [滋賀] with characters. (2) サンタクロースを見た人はいない。けれども,それはサンタクロースが いないという証明にはならない。 Nobody saw Santa Claus. [大阪薬科大†] However, it can't be mean demonstration that santa Claus doesn't exist. (3) ハンカチで鼻をかむ日本人はほとんどいない。 ・Few Japanese blow their nose. [関西学院大] with a handkerchief. (4) 日本では,毎年出生率が低下し子供の数が減っている。 [愛知] In Japan, birthrate is decreasing and the muniber the number of children is decreasing every year. (5) 近年,電子書籍の普及が急速に進んできた。 In recent years, more and more have been usingerbook. people. [京都大†]

英語の長文です どこに文法表現があるか知りたいです！ よろしくお願いします。

5 UNIT3 Reading Passage 10 15 20 20 25 30 Listening When important events are happening around the world, most people turn to traditional media sources, such as CNN and BBC,¹ for their news. However, during the invasion of Iraq by the United States and its allies in early 2003, a significant number of people followed the war from the point of view of an anonymous² Iraqi citizen who called himself "Salam Pax" (salam means "peace" in Arabic, and pax means "peace" in Latin). Salam Pax wrote a diary about everyday life in Baghdad during the war, and posted it on his web site. Pax's online diary was a kind of web site known as a "blog." Blogs, short for "web-logs," are online diaries usually kept by individuals, but sometimes they are written by companies and other groups of people. They are a rapidly growing type of web site on the Internet. There are estimated to be several hundred thousand blogs on the Internet, and with the popularity of other social media sites, the number of people writing online about their lives continues to grow. may find A blog differs from a traditional web site in several ways. Most importantly, it is updated much more regularly. Many blogs are updated every day, and some are updated several times a day. Also, most blogs use special software or web sites which are specifically aimed at bloggers, so you do not need to be a computer expert to create your own blog. This means that ordinary people who computers difficult to use can easily set up and start writing their own blog. In 2003, the Internet company AOL³ introduced their own blogging service, enabling its 35 million members to quickly and easily start blogging. There are many different kinds of blogs. The most popular type is an online diary of links, where the blog writer surfs the Internet and then posts links to sites or news articles that they find interesting, with a few comments about each one. Other types are personal diaries, where the writer talks about their life and feelings. Sometimes these blogs can be very personal. There is another kind of blogging, called "moblogging," short for "mobile blogging." Mobloggers use cell phones to take photo's, which are posted instantly to the Internet. When the content and images posted online involve news subjects, mobloggers become citizen journalists. In fact, the Korean web site OhMyNews was a well known source for articles from international citizen journalists. However, in 2010, OhMyNews stopped posting new articles. Instead, it is now a blog site where citizen journalists can choose what makes the headlines, or just share ideas about how regular people are changing the news world. Anyone who visits the web site of a big media company can clearly see how the idea of blogging has changed the reporting of news. Quite often, a list of reader comments follow news articles. It seems that the news is becoming less like a report or a lecture, and more like a conversation, where anyone can join in. CNN, BBC Cable News Network, British Broadcasting Corporation anonymous not named; unknown 3 AOL America Online

この英語の問題わかる人教えて欲しいです！

◆以下の英文の中で文法的に正しい英文をア~エの中から2つずつ選び、記号を答えなさい。 9. What are you looking forward to doing? Instead of study Spanish, I learn Italian. Timmy likes to go to sailing. It is not necessary for us to hurry. 10.7 He locked the door with a key. That rug was made by my hand. We might have enough strength to carry the box. Please forgive me to not writing sooner. decide

この解説の授業受けておらず友達に答え見せて貰い(1)の答えが、紅茶にミルクを注がれると一杯の紅茶の味がよくなるという発見 と書いてあったのですが、私はミルクに紅茶を注がれると一杯の紅茶の味がよくなるというという発見だと思います。どちらが正しいですか？よろしくお願いします🙇

15 The secret of how to make a perfect cup of tea has finally been discovered by put the milk in first. The finding that a cup of tea tastes better English scientists if the tea is poured into the milk appeared to have settled an argument that has been of major concern to this nation of tea drinkers. 52 It all began after Dr. *Andrew Stapley, a chemical engineer at *Loughborough University, revealed 3) the recipe for a perfect cup of tea. He said the keys to producing the perfect cup were using *soft water, warming the pot and allowing the tea to stand for three minutes. As to the difficult issue of whether the milk or tea should be poured in first, Dr. Stapley said science proved it must be the former. The reason is that 10 when milk is exposed to high temperatures, such as being poured into a cup of very hot tea, it loses its fresh taste. 3 However, only a few hours after Dr. Stapley announced his findings to the world, a noisy debate started within the scientific community. Dr. Julia King, head of the *Institute of Physics, said the secret was to keep the water temperature at 98°C. Putting the milk in first was only a social custom that "has nothing to do with taste," she said. "In the past, only the rich could afford high quality *china cups which could withstand the hot tea being poured in directly. In contrast, those of us with cheap china had to put the milk in first to prevent our cups from cracking." ウ 262 words)