物理の屈折の範囲です 空気n≒1から媒質nへ入射する場合、n1/n2=sinθ1/sinθ2より、 1/n=sin90°/sinθ0になるのでは無いのですか？ n=の式になっているのがよく分かりません

80 39 v=_3x108 -=2.25×10m/s n 4/3 6×10-7 n 4/3 =4.5×10-m 3×108 f=-= 入 6×10-7 =5×10 Hz f=v/i' で求めてもよい。 40 逆行で考えれば n = sin 90° sin 00 sino, = 1 n 臨界角以下で入射す る光をカットしてや ればよい。 右図より r =D tan 00 r 1001 D:00 全反射 tan と sin を結ぶ三 角関数の公式を使っ てもいいが,右のよ うな, sino=1/n と なる直角三角形を描 n 1 80 √√n²-1 直 ため 43 Sz そこ その こそ

これを解く時のポイントを教えてください！🙇‍♂️（規則や定理など、、、、）

(8)三角形ABCについて, それぞれ次のような条件が与えられたとき,三角形ABC がただ1つに 定まるものをア,イ,ウ,エの中からすべて選び, 記号で答えなさい。 AB=3,BC=5, ∠ABC=35° ∠ABC=35°,∠BCA=60°,∠CAB=85° AB=3,∠ABC=45°,<BCA=67° エンAB=3,BC=5,CA=7

この英文の文法を教えて欲しいです。 (関係代名詞、不定詞など) 英語が苦手なのでどのような使い方をするのかなど教えてもらえるとありがたいです。

onference ánf(a)rans] im [éim] articipant artisǝpǝnt] sappointment isapintment] opose [prǝpouz] allenging elindsin] me to do mto do on one's appointment ... at all stantial stanf(ǝ)!] road [réilroud] instream instri:m] t is how ... e hope that... an impact on 3 In How did they come to publish their own paper? 2002, there was a study conference held by CHETNA an NGO that aims to help the children in slums. Among the participants, there were some children from a slum in South Delhi. They were shocked to learn that adults had no idea about what really goes on in a slum! To their disappointment, the children also learned that the media did not cover the issue at all! So they decided to join a project proposed by CHETNA. It was a G1 challenging plan to start a newspaper to let people know about the terrible conditions of kids living in the slums. G1 That is how Balaknama started. The children chose this name in the hope that their paper would serve as "the voice of children." In fact, their articles have sometimes had a substantial impact on society. In 15 2015, a shocking article appeared in Balaknama. It was about slum kids forced by police officers to remove bodies after railroad accidents. The mainstream media reported on the article and the government finally acted and stopped the police. 20 nsion Check id the children learn at a study conference held by CHETNA? roject did CHETNA propose? d the children name the newspaper Balaknama?

この英文の文法やtheyやitが何を表しているかなど詳しく教えて欲しいです。

onference ánf(a)rans] im [éim] articipant artisǝpǝnt] sappointment isapintment] opose [prǝpouz] allenging elindsin] me to do mto do on one's appointment ... at all stantial stanf(ǝ)!] road [réilroud] instream instri:m] t is how ... e hope that... an impact on 3 In How did they come to publish their own paper? 2002, there was a study conference held by CHETNA an NGO that aims to help the children in slums. Among the participants, there were some children from a slum in South Delhi. They were shocked to learn that adults had no idea about what really goes on in a slum! To their disappointment, the children also learned that the media did not cover the issue at all! So they decided to join a project proposed by CHETNA. It was a G1 challenging plan to start a newspaper to let people know about the terrible conditions of kids living in the slums. G1 That is how Balaknama started. The children chose this name in the hope that their paper would serve as "the voice of children." In fact, their articles have sometimes had a substantial impact on society. In 15 2015, a shocking article appeared in Balaknama. It was about slum kids forced by police officers to remove bodies after railroad accidents. The mainstream media reported on the article and the government finally acted and stopped the police. 20 nsion Check id the children learn at a study conference held by CHETNA? roject did CHETNA propose? d the children name the newspaper Balaknama?

底がそろっていないときの変形の仕方が分かりませんお願いします

(3) log210.log 510-(log25 + log52) g 15 359 a= = 10g23,6=10g25 とするとき,次の式を a, b で表せ。 (1) log215 Yog=15=10g+3+109.5 =a+b (2) log275 Xog 275=/10923. dgol (S ngol b.gol gold gol (S) A (3) log445 10g2(55) (0gr 46 = log (375) = 2log ade loge 5 15 bal 10gx480 20+6 12 23+ 2 6 2. 1-Abgo) bago) - Japol-dapo) J

解説にある、sinceは〈過去の時点〉を伴う、というのは 過去から現在までの経過を示す現在完了形は含めない、 単に過去のこと（過去形の文章）に使われるということですよね？？ また（3枚目の問題では）過去を伴わないけどsinceが正解なので、必ずしもsinceは過去を伴わな... Read More

15. -------- two decades of experience in Thai cuisine, Ms. Tan has opened a new high-class restaurant in downtown New York. (A) Toward (B) Since (C) Behind (D) With em primoheq need gaim bemioheq

答え合ってるかみてほしいです！！

wo es deilgu orai bo 2 日本文に合う英文になるように,( )に適切な語を書きなさい。 1) 若い世代は手紙よりメールを好む。 brow (完答4点×4=16日 shiad modow dailynd antoood and bio The younger generation prefers e-mail ( 2)2つのうちでは,このバイオリンのほうが音がよい。 This violin sounds ( to ) letters. VIST TO the) better ( "lus" browsdT. of ) the two. 3) 私はこの犬が不細工だからよけいに好きなのだ。 Shingom head ratio orb I like this dog (all) the( better) because it is ugly. 4) 彼のことを信じるほど私はばかではない。 gried uodiew piaravib bas moboart I() better than to believe him. "ilswsd" diiw goolA oda quimorticool gasm has amine ogsugasl dailand and lone =n. Do

(5)と(8)はなぜestarでは無いのかを教えて頂きたいです🙇‍♀️

ROSA: ¿Tu piso (1) es grande? ANDRÉS: No, solo tiene 40m², (2) es gusta porque (3) está ROSA: ¿(4) Está 1 muy pequeñ 1 en un barrio muy céntrico. 1 cerca del trabajo? ANDRÉS: Sí, muy cerca. Solo tiene un problema: que mi calle (5) es es 1 muy ruidosa y no duermo bien por las noches. ¿Y tu piso, cómo (6) ROSA: Pues (7) es Pero tengo un problema: (8) está 1点 ? 15 muy tranquilo y tiene mucha lu 占 muy lejos del traba una hora en llegar todos los días.

数学Iで写真の問題の(2)番が分かりません💦計算過程を教えて頂きたいです🙇‍♀️よろしくお願いします🥲︎

2. [赤チャート数学Ⅰ 北海道薬科大] 定 次の関数の最大値と最小値, およびそのときの0の値を求めよ。 y=2sin208sin 0 +5 (1) 0°≤090° のとき (2)0°0180°のとき y=cos20-2sin 01 Y-2(sino-23-3.) 0:0°のとき sint += 90° -1 Singo-1 日:90°のとき-1 cos20-2sin-1 14 0° ≤ 0 ≤ (80° y - cos² 0 -2sin-1 1210°≦D=180°

この問題教えてください

2 日本文に合う英文になるように,( )内の語句を並べかえなさい。 .000 d 12点) Jyd 1) 彼女はその電話番号を忘れないように書き留めた。 ongary but She wrote down the phone number(as/forget / it/not/so/to).jo nolsm Sri WOPT sad 10 10 10 20 10songod (3) nini 2) 悪天候のためにその飛行機は離陸できなかった。vil algong 10l arnoldong omos gniauso arloss Bad weather (from/prevented / taking / the airplane / off). bruorg ath as hitlam won 21 emote instony.aniwb. we bodeswarind mor at abnal 3 ) 私は財布を家に忘れ、さらに悪いことに、携帯電話は充電する必要があった。 I left my wallet at home, and (matters / make / to / worse ), my cell phone lo also needed charging. TE