(2)の一枚目の1番下から2枚目の1番上に行くまでの計算が合わないので過程を教えてください(>_<)

≧0≦0 のとき, 関数 y=cos20+√3 sin 20-2√3 cos0-2sin0① について、 次の問いに答えよ. (1) sin+√3cos0=t とおくとき,t のとりうる値の範囲を求 めよ. (2) ① tで表せ. (3) ① の最大値、最小値とそれを与える6の値を求めよ. の2種類の式一 60 (2)の式と似ていますが, 60 (2) は sinx と cosx 61 は sine, cose, sin 20, cos 26 の4種類の式である点が異な一 います。 しかし, 誘導がついているので, それに従えばよいでし う. ヤマは(2)で, sine, cos0 から, cos 20, sin 20 を導く手段が見つけ かどうかです. 精講 (1) t=sin0+√3 cose 13 = 2(sine + cose.√3) 2 解答 = (sin @cos y+cos #sin ^) - 2sin (+4) π 2 3 3 100より、 £4, π π set1/08/1/5だから、 π -≤0+· 6 3 3 √3 ≤sin (0+ : -1≤t≤√√ 3 (2) = (sin0+√3 cos 0 ) ² =sin²0+2√3 sin@cos0+3cos' 0004+2000 _1-cos 20 2 +√3 sin 20+3.. A 1+cos 20 2 【合成して 0を1 所にする 2 7 √3 con=" 2 A 6 2倍角、半角の公式

ここの答えは何ですか？ 教えて下さい！

16. The man ( ) my friend deceived me. 7. I thought who was . what I thought 17. My uncle is so stubborn that he is very hard ( 7. pleased 1. pleasing I. to please . to have pleased 18. The number of doctors ( 7. are 1. I thought whom was I. who I thought was . has been ) increasing these three years. . have been 19. Don't look down on a man just ( 7. because 1. for ). ) he is poor. . whether I. is I. why 20. Will you buy a new hybrid car when they ( ) available? 7. are becoming 1. became

(1)の問題です。 写真に書いてあるのは解答なのですが、 The harder I study math, the more questions which is difficult to solve is increasing. はだめですか？

6 次の文を英語にしなさい。 ( 6×2) (1) 数学を勉強すればするほど、 解きにくい問題が増えるんだ。 (2) サムは気が滅入ってしまって何も食べる気になれなかった。 (1) The more harder I study math, the more questions. I find difficult to answer.

mixedは過去分詞ですか？ また直訳だと ｢ますます文化的に混合された世界中の人々のおかげで｣ となると思うのですが、合っていますか？ [問題集の訳] thanks to an increasingly culturally mixed global populatio... 続きを読む

黄色線のところで 答えはthoughなのですがhoweverも選択肢にありなぜダメなのですか？

people. So they ( 1 their forest? According to the news, they came out (2) their forest was cut down by men and their food has become less day by day. As you know, an elephant is the biggest animal on earth. It needs a lot of food to eat every day. Tree leaves, nuts, fruits, grass and other foods are decreasing while people cut down forests to make land for fields or houses. The group of elephants appeared in the village to look for food, (3) they did not want to leave their "home" forest. (A) 10 The elephants' sleeping hours are short. They sleep for only about four hours a day and spend many hours eating. They move around in groups. Each group is made up of 15 30 human village. people chased the During Worl were told to ki dangerous whe elephants also which had poi anything and died, the zoo What are they try to te and save for 35

(5)解説で「⑤式において、θ＝135°にもかかわらずΔλ≒0となるのは〜」とあるのですが、なんでΔλが0に近づくとX線強度が跳ね上がるのですか？ (出典:難問題の系統とその解き方)

(i) 電圧 くなり ・飛び のよう たの) 傾きこん Wo h ら, 例題 コンプトン効果 電子の質量をm, プランク定数をん, 光速をcとして、以下の設問 に答えよ。なお, (1), (2) 以外は解法も簡潔に記すこと。 [A] 1923年, コンプトンは波長入のX線を金属薄膜に照射し、散乱さ れたX線の強度の角度分布を測定した。その結果の一部を模式的 に示したのが図1であり,X線が散乱されてもとの波長より長く なっている成分のあることが観測されている。 コンプトンはこの現象を,X線を粒子と考え、この粒子すなわ 光子と静止している電子との衝突と考えて解明した。 図1(a) X線強度 (X線の散乱角80°) 入 X線波長 図 1 (b) X線強度 (X線の散乱角0=135°) M 入。 入 X線波長 図2 入射光子 (19) O- 散乱光子 (1) O 反跳電子 (0) (1) 光子のエネルギーEと運動量P を,h, c, およびX線の波長入のう ち必要なものを用いて, それぞれ表せ。 (1-cos 0) を導け。 ただし、 (2) 散乱前後の光子の波長をそれぞれ入, 入] とし, 反跳電子の速さをか とし,入射方向に対するそれぞれの散乱角を,図2のように0.④と する。このとき,入射方向とそれに垂直な方向の運動量保存則を それぞれ記し,さらに、エネルギー保存則を記せ。 h (3) 41 (=A₁-A)=- 4 « 1 として、 do mc 近似を用いること｡ (4) 反跳電子の運動エネルギーの最大値T maxをm,hcおよびふを用 いて表せ。 (50=135°の図1(b) では, 波長入。 付近にもピークが見られる。波長の ピークが光子と金属中の電子との散乱によるのなら､山のピーク は光子と何との散乱と考えられるか。 理由も述べよ。 [B] 一方、電子の波動性については, 1924年ド・ブロイが予想し, 1927年デヴィッスンとジャーマーが検証した。 彼らは格子間隔dの 2-1 原子の構造 263

1枚目が板書で2枚目が自分で解いたものなんですが積和の公式で考えるとどうしても最後板書の答えと違ってマイナスがついてしまいます。 間違いを教えて欲しいです

[ saako = k=1 13 Sh28-01-20 45th ²0 Son (ht|)0pas (k+)8) 2Sm (H+) () (25( m+1) 8) 2 Asin ²0 #0 _Sm(1+1) cos(14)0 - Cas(n+1)0 I 25+0 (141) 0-25 nd so asing S/N (1+1) Stand sino " きた和積

この文のhave been long devotedの devotedはなぜ補語という扱いなのでしょうか、動詞ではないのですか？

UNESCO employees have been long devoted (to increasing international cooperation (in the areas (of education, science V Bytj M₁ C M₂ # Sa culture))), [but most have never before been so deeply 接 S Bj M₁ M₂ V M3 convinced (of the importance (of their work)). w S M

答えは2なのですが、答えをみて文脈でとったら2だとわかるのですが、welcomeって動詞じゃないんですか？wasがきているのにwelcomeでしかも原型なのは形容詞ってことですか？

Among the thirteen English colonies, the State of Massachusetts was very important as the starting point of the American Revolution. In particular, the town of Boston was the center of opposition between the colonists and the 20 British government. In the beginning of 1770, there were 4,000 British soldiers living there with 15,000 inhabitants and tensions between them were running high. Specifically, the presence of British troops in Boston was increasingly (1) because of high taxes imposed by the British government. Boston As a result of this high tension, a riot occurred on King Street between 25 citizens and a troop of British soldiers. The riot was caused when British as Na 55 m 語

問3教えてください😭😭😭🙇‍♀️🙇‍♀️

元子 The (1)"rare earth elements are a group of 17 metallic elements that are found in the natural 元子 world. Because these elements are used in all sorts of high-tech devices, they are increasingly 全種類 倍増した in demand. In fact, the use of these metals nearly doubled between the years 2000 and 2010. d Despite the name, the quantity of these elements is not so low. Some recent reports have 主張した claimed that the amount of rare earth elements may be on the same level as that of copper* or Even though the elements exist throughout the world, however, the quantity is not LAUOPUS OS sufficient* for mining* profitably* in each location. Moreover, these elements are usually mixed lead*. with other elements, making it difficult to remove them. This explains why they have been called (8) (A) „‚Â#881‡3 GANEUS $0 01X$&NOS "rare" earth elements. (8) jud (A) Jon Despite an ever-growing demand, few countries are mining for these metals on a large scale. bhup gnis91 sus abnsmab 19 (A) jos ei said ino NO One country, China, now handles more than 90% of all mining for rare earth metals. Other Jadi seu ingim owied 参 in di o ogsmeh, countries have not entered this business in part because of In oro guiauso juodhiw moi because of (2) the environmental problems th ANS) OW IGERS allesimonoss maci pruxs of lola su od son ob enido merla corto prinanvoo can occur. Extracting the metals creates a lot of waste, including radioactive* waste from >tojat DEROXA uranium*, thorium* and other elements located in the mining area. poswad belduob vlison and anomals die ve dost-dgid to edmund oros bas The growing need for rare earth metals may convince some countries to expand their mining. bsol 10 190900 2 von dem som vas a su amals drus ma maldong nista on jonzi blow di metavond zimnelo drusele viirusno leuns afte Running out of rare earth metals is not the concern, however. Rather, the question is whether 2 lo word of mine anomals dre His ch 21810 i asıl yainuas vino odo at smidƆ> vob dost-deid ni bozu.ad no vod! they can be obtained without too high of an economic or environmental cost. ololo alam russ