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数学 高校生

⑵で質問があります。 解答の2行目のcosθ+sinθcosπ/6+cosθsinπ/6 までは理解ができるのですがそこからなぜ3行目に合成できるのでしょうか? ご教授いただけると幸いです。

1. 276 第4章 三角関数 A 例題150 三角方程式・不等式 (4) 次の方程式・不等式を解け。 (>合の良 (U+0) (1) sin-cos0=1 (+6)/2 + (384 (2) cose+sin(0+1)>0 (-r≤0<^) 考え方 (1) sin0 と coseを合成して, sin だけの式を導く. 解答 (1) (18) (2) まず,加法定理を用いて sin0+ 7 ) π 鍼酒 (1) 場合の関 10 の範囲が与えられていないので一般解を求める. 一般解は, 一般角で表す。 min √2 sin(0-4)=1 1 π sin (0-4)=√2 sin (0+1) したがって、 右の図より Cos 03 0-4-4+2nn, よって, (+3) pie) (2) cos 0+sin(0+)>0 sind-cosQ=1;0a9f-ania of DeNi 三角関数の 12 (1920 -sin0+ cos >0 +23/20 0= π +2nπ, π+² ARE 0のとき 2 よって ²0+ < r 37 FOOD RD 3 To を分解し、その後合成する。 - X 34 TC 031 T Ə sin (0+0+0nia +2nx π cos0+sinocos +cos Osin0 6 RCO03L10200-S Ania 94 √3 sin(0+5)>0 20 2 12/23 π 3 π 4 47 (a con monia T #+9 Los @=>, sin/white したがって、 右の図より、0<0+/< +2n(nは整数) 確認 -ni20 200+ ¹2000 nie YA で直すことができない。 *** (東京理科大) 20 /1x Cosa= sina=- 12 nizenia+2009 200 より,α=-- 64 YA Oa 一般解で答える。 (3+0) ale) 22663) -1---- 加法定理 | sin(a+B) =sinacos B +0 20 cosa= +cos asial 三角関数の合成 47 Checl 例 √3 2 3 sina 3 より、O=1 角

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英語 高校生

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No. Date P. 42 教 9.52 L4 S1 ① Sesame Street is a popular eclucational program. (セサミストリートは人気の(ある)教育番組です。) 2 It teaches children listeracy and other lessons. (子どもたちに読み書きやその他のレッスンを教えます。) ③ It is how offered online as well as on TV. (現在はテレビだけでなくネット(オンライン]でも配信されています。) 4 The program is famous is famous for its coloful characters. (この番組はカラフルなキャラクターで有名です。) Cookie Monter loves to eat everything, especially cookies. (クッキーモンスターは何でも食べることが大好きで、特にクッキーが大好きです。) ⑥ Big Bird is very kind and tall. (ビッグバードはとても優しくて背が高いです。) ⑦ Ernie always asks his friendl, Bert, silly questions. (アーニーはいつも友人のバートにくだらない質問をします。) ⑧ Children see each character play a unique role in the program. (子どもたちはそれぞれのキャラクターが番組の中でユニークな〔独自の〕役割を果たしているのを見ます。) ⑨ Sesame Street is shown in about 160 countries, and some characters are different from country to country) (「セサミストリート」は約160ヵ国で上映〔放映]されており、一部のキャラクターは国によって異なります。) ⑩ For example, in South Africa, you can see Meshe, a meer a meerkat. (たとえば、南アフリアでは、ミーアキャットのムシェを見ることができます。) ① He likes dancing and growing vege tables. (彼はダンスと野菜栽培〔作り〕が好きです。) ② Another example is Lily in China. (もう1つの例は中国のリリーです。) ③ She is a tiger that likes martial arts. (彼女は武術が好きな虎です。) ④4 Children around the world enjoy their own version of Sesame Street. (世界中の子どもたちがそれぞれのバージョンのセサミストリートを楽しんでいます。)

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英語 高校生

英文長くてすみません💦 1番最後のitは何を指しているのでしょうか。署名を集めたことですか?それともプラスチック汚染のことですか?それともその後にHowever,they received no answer from the government of Bali とあるの... 続きを読む

Bye Bye Plastics Scene 1 1 Sisters Melati and Isabel were 10 and 12 years old when they were by a lesson in school in Bali about significant people such as Nelson Lady Diana, and Mahatma Gandhi. They returned home and wondered inspired Mandela, G-1 in 2013 and has now grown into a well-known international movement which "What can we do as children in Bali, NOW, to make a difference?" That was まさに the very beginning of their campaign called "Bye Bye Plastic Bags." It started Scene 2 the gove thanked agreed to 6 In 201 5 but the thought collected says NO to plastic bags. 連結形(well+過去分詞) 平方メートル 2 Bali is known by locals as an island of gods and a green paradise. People in Bali, however, produce 680 cubic meters of plastic garbage a day. Amazingly, this is about the size of a 14-story building, but less than 5% gets recycled. 未満 階 thrown The rest ends up in drains, rivers, and the ocean, or it is just burned or be動詞+過去 away. Such plastic pollution is now damaging the whole island. より動作を強調 remaine and try Scene 4 7 On ban or or pla →理由(既知情報) Tuow 3 Since they were driven by a love of their home and its nature, Melati and Isabel started Bye Bye Plastic Bags in October 2013. Their aim was to put a ban on the use and sale of single-use plastic bags in Bali to stop plastic pollution. Their first efforts focused on giving out non-plastic bags, such as net bags, newspaper bags, and 100% organic material bags, to local shops. They also began to teach locals and let them know about the pollution problems. 取り組み G-2 4 In order to educate all the island on the dangerous effects of single-use plastic bags, Melati and Isabel thought that government policies needed to change. They decided that they should collect one million signatures so that officials would not ignore them. To collect that many signatures, they came up with a great idea: collecting signatures at the very busy Bali International Airport. They went there and talked with officials, but these people wouldn't let them do so at first. The sisters talked again and again, and finally they were allowed to collect signatures there. As a result of this great campaign, they were invited to talk about it on TV programs and also at the United Nations. G-2 Scene 3 pollut 8 M 15 teena of w ed just 9 ar

解決済み 回答数: 2