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英語 高校生

この黄色いマーカーのとこの分構造を教えて欲しいです。

異議をとなえる 明治大文 significant five per cent. 2022年度英語 7 chalerghg T困難だがやりがいある always prefer print to ebooks. By 2016, that number had climbed a modest but 控えぬ The increased sales books) and their popularity with of younger people, demonstrate that old media is not just the province the old)/ 領域 3 The argument that printed books were becoming outdated and obsolete was by challenged not only by books' renewed popularity, but also by expert studies that pointed out the psychological Benefits enjoyed by people (who liked to read 動 a remedy for (イ) b.difficult writing) (in other words researchers suggested reading ( n all sorts of problems) (2013) the journal Science published a study that concluded that people who mostly read literary writing had a clearer appreciation breached other people's ways of thinking than those who tended to prefer popular bestsellers: The authors (②this study) discovered readers to be better (あ the emotions expressed faces on at understanding others' false beliefs when they had just read prizewinning short stories than when they had I read lighter more commercial writing: This experiment provided a new contribution to the familiar debate (on the difference between literary writing and popular bestsellers Bluzin 1 0 experiment suggested b/captivated (②E a printed book) remained a worthwhile (even in the digital age that finding time to be activity (C① many people) O 4 est The view that people the past read more were better readers is not ✓ and (historical evidence. It is true that print experienced a golden age between the rise D mass audiences: ( the eighteenth century (and the twentieth- a century triumph of the paperback Nonetheless, well before competition (from social media, only a finy minority (①volumes that were published ever found a ader(1 Instead of reading novels carefully, aristocrats had their hair curled reader ✓ ever while listening to a servant reading aloud Long before people compiled favorite songs or pieces of music on their computer or mobile phone, poetry lovers scissored pages apart to paste scraps of one collection onto the margins of another. Early bookstores sold fish, while books were also sold door-to-door by clothing salesmen. Authors back then debated in print, as strongly as today's content providers do online, whether the written work should be rented or sold, licensed or owned. In short, printed books gave birth to many of the capacities cs CamScanner でスキャン

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数学 高校生

次の(3)の青い線のところで何故4の倍数となるのでしょうか?解説お願いします🙇‍♂️

前題の対側は りば (1) 命題: x≧1 かつ y≧1 ならば, x+y≧2 について 裏対側を述べ, その真偽を調べよ. (2) 命題キェならばェキ1 が正しいことを対偶を用いて証 明せよ。 (3) 「2が無理数であることを背理法を用いて示せ. よって, 与えられた命題 「エキェならばェキ1」 は真. 注 対偶を用いて証明する場合は, たいてい 「キ」, 「また ••••••に対して」 という表現が含まれています。 くまず、 (3) √2 が有理数と仮定すると. 2つの自然数m, n を用いて, √2 2=- と表せる. n m 精講 (1) (2) ある命題が正しいことを真 (true), 間違っていることを偽 (false) といいます. また, 次表のような関係にある命題を, それ ぞれ、 元の命題の逆・裏・対偶といいます(→は「ならば」を意 味します). 逆 有理数の定義 g→p 裏 対偶 裏 (ただし, m n は互いに素) 両辺を平方すると 最大の 左辺は偶数だからも偶数。 すなわち, nも偶数。 このときは4の倍数だから,2m² も4の倍数. よって, m² は偶数となり, mも偶数. ゆえに, m とnは共通の約数2をもつことになり、 2つの整数 min(nto)を用いて 分数の形で表される数 mとnが互いに素であることに矛盾する. よって, 2 は有理数ではない。 すなわち,2は無理数

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