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English Senior High

(6)の模範解答が⭕️なのですが、問題文にはwhen Nightingale was young とあり、文中の黄色マーク🟡で引いた該当する文は、彼女が30歳になった時のことを言っているのから❌ではないのですか?教えてください🙏😭

次の英文を読んで、(1)~00までの文がその内容とあっていれば〇をそうでなければ×を解答 用紙に記入しなさい。 Florence Nightingale Florence Nightingale was born on May 12, 1920, into a wealthy family in England, and received the most luxurious education from an early age, learning not only foreign languages like French, Greek, and Italian, farmers she visited for charity work, she gradually began to think that she wanted to work in a job that but also mathematics, astronomy, psychology, and literature. However, after seeing the lives of poor served people. When she turned 30, she decided to become a nurse and started working at a hospital in London. Nightingale, who eventually became a director of a women's hospital, began to advocate the need for nurses with specialized training. At that time, nurses had a low status and were considered nothing more than servants who cared for the sick. A major turning point occurred in 1854. War began in Crimea*, present-day Ukraine, and Nightingale was sent there with 24 Catholic sisters and 14 nurses. Nightingale's efforts improved the hospital environment during the war. The Nightingale School of Nursing was established with the Nightingale Fund created during the war. Although Henri Dunant, a founding member of the International Committee of the Red Cross, highly praised her work, Nightingale was not involved in the International Committee of the Red Cross. This was because she believed that aid activities based on self-sacrifice by participants would not last long. Her famous quote, "Devotion without sacrifice is true service," expresses this well. It is said that this was due to the idea that "we rely on the spirit of service of our members, but without financial support, we are powerless." Nightingale only served wounded soldiers as a nurse for only two years during the Crimean War*, and became famous for her symbolic image of dedication and for her use of statistics to reform health care. The statistical methods she used at this time were highly praised, and she was considered a pioneer of statistics in England. Nightingale suffered from poor health from a young age, and is said to have spent most of her time in bed after returning from Crimea. Nightingale passed away peacefully at the age of 90 at her home in London on August 13, 1910. advocate* 主張する Crimea* クリミア半島 Crimean War* クリミア戦争 (1) Florence Nightingale was born in a wealthy family and she learned many foreign languages. (2) Nightingale wanted to be a nurse when she was small. P (3) It was when she was 30 years old that Nightingale wanted to be a nurse and started working at a hospital. (4) Nightingale's work in Crimea improved the environment of the hospital there. (5) Nightingale did great work to found the International Committee of the Red Cross. (6) When Nightingale was young, nurses were thought to be like servants. (7) Nightingale's famous words, "Devotion without sacrifice is true service," means self-sacrifice of the participants is always necessary rather than financial support. (8) Nightingale was not blessed with good health since young and spent much of her time in bed. (9) Nightingale is considered a pioneer of statistics in the world as she used statistics to reform health care. (10) Nightingale worked as a nurse all her life.

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Mathematics Senior High

高1数学Aのチャートの例題85の(2)の問題です。 メネラウスの定理に関する問題です。 解説で、最初の二行がわかりません。 教えてくれたら嬉しいです🙇‍♀️

三角 の変 理の 470 重要 例図 85 チェバの定理の逆・メネラウスの定理の逆 00000 (1) △ABCの辺BC上に頂点と異なる点D をとり, ∠ADB, ∠ADCの二等分 線が AB, AC と交わる点をそれぞれE, F とすると, AD, BF, CEは1点で 交わることを証明せよ。 AB: AR-5:43 38 VD, BC, DA との交点を,順に Q,R, S, Tとする。 2直線 QS, RT が点 平行四辺形ABCD 内の1点P を通り, 各辺に平行な直線を引き,辺AB, で交わるとき 3点 0, A, Cは1つの直線上にあることを示せ。 指針 (1) △ADB において, ∠ADB の二等分線 DE に対し P.465,466 基本事項 2,4 DA AE DB EB △ADC における ∠ADC の二等分線 DF についても同様に考え,チェバの定理の逆 を適用する。 (2)△PQS と直線OTR にメネラウスの定理を用いて QRPT SO =1 RP TS OQ ここで,平行四辺形の性質から PT, TS, QR, PR を他の線分におき換えてメネラ ウスの定理の逆を適用する。 (1) DE, DF は,それぞれ∠ADB,∠ADCの二等分線で | 内角の二等分線の定理 DA AE DC CF (1) A 3 解答 あるから DB EB, DA FA ゆえに AR AE BD CF DA BD DC = 10 EB DC FA =11 E F DB DC DA よって,チェバの定理の逆により,AD, BF, CE は1点 で交わる。 B D C 31 (2)△PQS と直線 OTR について, メネラウスの定理によ (2) トラウス QRPT SO =1 EX-A9:9J RP TS OQ D A JA at PT=AQ, TS=AB, QR=BC, PR=CS であるから 同外 BCAQ SO -=1 CS ABIOQ QABC SO すなわち =1 AB CS OQ P R BS C よって, メネラウスの定理の逆により, 3点 0, A, CはQBSと3点 0, A, C 1つの直線上にある。 注目。

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Mathematics Senior High

双曲線 なぜPを特殊な置き方すると上手くいくのか、またなぜ自分のやり方では接線が三本求まってしまうのか教えて欲しいです。

62 例題 6.2 双曲線H: 1に点 (21) から引いた接線の方程式と接点の座標を求めよ. 同様に, B=√3 のとき, ② よりα=2. これを①に代入して、求める接線の方程式は、 そのときの接点の座標は, x-y=1 【解答】 <別解> P(4, 3) 直線x=2は求める接線 (のひとつ) であり,このとき接点の座標は (2,0). 点 2 1 を通る直線で, x=2以外のものは とおける. √√√3 (i) k=± 傾き …① 63 Cs (ii) k±2 一のとき,①は耳の漸近線に平行になるので接線になることはない。 のとき、 ①がHに接するための条件は、 ①をHの方程式に代入して得られる方程 式 H上の点P (2α,3β) における接線の方程式は, 3x²-4{k(x-2)+1}^2=12, ・なぜP yxfy=1 ...1 すなわち, ではなくこうおくのか② ・接線 これが (21) を通るので, が重解をもつことなので, ②の判別式をDとおくと (3-4k²)x2+(16k-8k)x-16k+16k-160 B α- ·=1 ・・・② D =0 4 また,PはH上の点なので, '-β2=1 ...③ ②より, α=1+- となるから,これを③に代入して B=0 のとき, ②よりα=1. -β'=1 -(+1) B(B-√3)=0 B=0,√3 これを①に代入して, 求める接線の方程式は, x=2 そのときの接点の座標は, P(2,0) (8k2-4k)-(3-4k²)(-16k²+16k-16)=0 k2(2k-1)^+(3-4k^) (k-k+1)=0 3k-3=0 k=1 これを①に代入して, 接線の方程式は, y=x-1 また、このとき②は(x-4)=0となるので, 重解x=4をもつ よって、 接点の座標は, (4, 3)

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