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英語 高校生

赤い下線のところがどういう構造になっているか分からないです、教えてくださいm(_ _)m

moving from " (1) 点) There are historians and others who would like to make a neat division between "historical facts" and "values." The trouble is that values even enter into deciding what count as facts-there is a big leap involved in 'raw data" to a judgement of fact. More important, one finds that the more complex and multi-levelled the history is, and the more important the issues it raises for today, the less it is possible to sustain a fact-value division. But this by no means implies that there has simply to be a conflict of prejudices and biases, as the data are manipulated to suit one worldview or another. What it does mean is that the self of the historian is an important factor. The historian is shaped by experiences, contexts, norms, values, and beliefs. When dealing with history, especially the sort of history that is of most significance in philosophy, that shaping is bound to be relevant. As far as possible it needs to be articulated and open to discussion. The best historians are well aware of this. They are alert to many dimensions of bias and to the endless (and therefore endlessly discussable) significance of their own horizons and presuppositions. A great deal can of course be learned from those who do not share our presuppositions. Our capacity to make wise, well-supported judgements in matters of historical fact and significance can only be formed over years of discussion with others, many of whom have very different horizons from our own. It is possible to I have a 12-year-old chess champion or mathematical or musical genius, but it is unimaginable that the world's greatest expert on Socrates could be that age. The difficulty is not just one of the time to assimilate information; it is (2)

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数学 高校生

メネラウスの定理の使い方が曖昧です。それぞれの辺を選ぶのを間違えてしまいます。どうやって問題をとく時に判断すればいいですか。

例題 262 メネラウスの定理と面積比 M. N ★★★ し, ALとCNの交点をP, ALとBMの交点を Q, BM とCNの交点をR とする。 次の三角形の面積を △ABCの面積Sを用いて表せ。 (1) ABCR (2) APQR RoAction 高さ (底辺) の等しい三角形の面積比は, 底辺 (高さ)の比とせよ 逆向きに考える (ABCR から始めて、△ABCへ広げていくには、どの線分の比が必要だろうかっ 思考のプロセス △BCRと 見方を変える 似た構図 直接求めるか? M (2) APQR △ABC- (△PQR 以外の部分) と考えるか? B L ~ (1) C TOPE よって, △ABMと直線 CN につ いて, メネラウスの定理により 解 (1) AN:NB=1:2であり, CM:MA=1:2よりで交わることは、 CM: AC ③3 1:3eek M ために, BM BRをメネ △BCR → △BCM →△ABCと広げていく R める。 ラウスの定理を用いて表 B AS AC MR BN P 1 CM RB NA 3 MR 2 RM 1より 1 RB 1 BR 16 VMB LQ よって ゆえに RM:BR = 1:6 BM:BR = 7:6 例題 255 したがって 6 ABCR = = ABCM = 6 . 7 3 (2)(1)と同様に, △BCN と直線 AL, △CAL と直線 BM について, メネ ラウスの定理を用いると ・△ABC: = 27 S ACM: AC = 1:3 例題 255 BA NP CL =1より AN PC LB 3 NP =1 PC 6 1 PC 1 △CAP=△ABQ= 2 CN= UM よって NP:PC = 1: = -S R 7 B よって C △PQR =△ABC- (△BCR + △CAP + △ABQ) M9 MBL QA MC 3. LQ.2 1 QA 1 CBLQ.. AM =1よ =1 2 =S-3・ S= S 7 よって LQ:QA=!

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英語 高校生

答えあっていますでしょうか🥲🥲

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