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英語 高校生

和訳お願いします。

次の英文を読んで, 設問に答えなさい。 [5] The headline grabs your attention: "The ancient tool used in Japan to boost memory." You've been The Japanese art of racking up clicks online more forgetful recently, and maybe this mysterious instrument from the other side of the world, no less! could help out? You click the link, and hit play on the video, awaiting this information that's bound to change your life. The answer? A soroban (abacus). Hmm, () それは私がどこに鍵を置いたか覚えておく助けになりそうには ないですよね? This BBC creation is part of a series called "Japan 2020," a set of Japan-centric content looking at various inoffensive topics, from the history of Hiroshima-style okonomiyaki pancakes to pearl divers. The abacus entry, along with a video titled "Japan's ancient philosophy that helps us accept our flaws," about kintsugi (a technique that involves repairing ceramics with gold-or silver-dusted lacquer), cross over into a popular style of exploring the country: Welcome to the Japan that can fix you. For the bulk of the internet's existence, Western online focus toward the nation has been of the "weird Japan" variety, which zeroes in rare happenings and micro "trends," but presents them as part of everyday life, usually just to entertain. This sometimes veers into "get a load of this country" posturing to get more views online. It's not exclusive to the web traditional media indulges, too but it proliferates online. Bagel heads, used underwear vending machines, rent-a-family services - it's a tired form of reporting that has been heavily criticized in recent times, though that doesn't stop articles and YouTube videos from diving into "weird Japan." These days, wacky topics have given way to celebrations of the seemingly boring. This started with the global popularity of Marie Kondo's KonMari Method of organizing in the early 2010s, which inspired books and TV shows. It's online where content attempts to fill a never-ending pit - where breakdowns of, advice and opinions about Kondo emerged the most. Then came other Japanese ways to change your life. CNBC contributor Sarah Harvey tried kakeibo, described in the headline as "the Japanese art of saving money." This "art" is actually just writing things down in a notebook. Ikigai is a popular go-to, with articles and videos popping up all the time explaining the mysterious concept of ... having a purpose in life. This isn't a totally new development in history, as Japanese concepts such as wa and wabi sabi have long earned attention from places like the United States, sometimes from a place of pure curiosity and sometimes as pre-internet "life hacks" aimed making one's existence a little better. (B) The web just made these inescapable. There's certainly an element of exoticization in Western writers treating hum-drum activities secrets from Asia. There are also plenty of Japanese people helping to spread these ideas, albeit mostly in the form of books like Ken Mogi's "The Little Book of Ikigai." It can result in dissonance. Naoko Takei Moore promotes the use of donabe, a type of cooking pot, and was interviewed by The New York Times for a small feature this past March about the tool. Non- Japanese Twitter users, in a sign of growing negative reactions to the "X, the Japanese art of Y" presentations, attacked the piece... or at least the headline, as it seemed few dove the actual content of the article (shocking!), which is a quick and pleasant profile of Takei Moore, a woman celebrating her country's culinary culture. Still, despite the criticism by online readers, the piece says way more about what English-language readers want in their own lives than anything about modern Japan. That's common in all of this content, and points to a greater desire for change, whether via a new cooking tool or a "Japanese technique to overcome laziness." The Japan part is just flashy branding, going to a country that 84% of Americans view positively find attention-grabbing ideas for a never-ending stream of online content. And what do readers want? Self-help. Wherever they can get it. Telling them to slow down and look inside isn't nearly as catchy as offering them magical solutions from ancient Japan.

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数学 高校生

合成関数がよく分かりません! (2)の別解に書かれているh(x)=(g。f^-1)(x) なのですが 何故h(x)=(g。f^-1)(x)になるのか教えて欲しいです!

Check 例題128 合成関数 (1) f(x)=3x+1,g(x)=2x2-2, h(x)= 「考え方 合成関数は順序を間違えないように注意しよう. (1)()((fog)。h)(x) は, f°g=Fと考えると, (Foh)(x)=F(h(x)) となる. 練習 を求めよ. (ア) (fog)(x) (イ)((fog)。h)(x) (2) 関数f(x)=x+2,g(x)=3x-4 がある. (hof) (x)=g(x) となる 関数h(x) を求めよ. Focus (2) y=f(x)とおいて, y を上手く利用する. つまり, (hof)(x)=h(f(x))=h(y) となる. または、右のように f(x) の逆関数 f''(x) を用いて考えてもよい . ) =1のとき、次の合成関数 (1) (7) (ƒ•g)(x)=f(g(x))=f(2x²-2) (イ) ((fog)。h)(x)=(f°g) (h(x)) 2 2 =(s. 9) (²₁)-6(²₁)²-5=(x-1)-5 =3(2x²-2)+1=6x²-5 よって, (別解) f(x)=x+2 より, (2) y=f(x) とおくと, (hᵒf)(x)=h(f(x))=h(y) したがって, (hof) (x)=g(x) より, h(y)=g(x)=3x-4 ...... ① h(x)=3x-10 また, y=f(x)=x+2 より, x=y-2 これを①に代入すると, h(y)=3(y-2)-4=3y-10 24 (f)(x)=g(x) より, f-¹(x)=x-2 合成関数 (gf) (x)=g(f(x)) ** h(x)=(gof-1)(x)=g(f'(x)) =3(x-2)-4=3x-10 h? 0010 h? 1010 (f°g) (x) は(ア)の結 果を利用する. y=f(x) とおいて, まずん(y) を求める. h (y) をxの式で表 す。 hy→3y-10 より, yx を代入す ればん(x) が求まる. y=x+2 とすると x=y-2より, f'(x)=x-2 注》例題128 (2)でん(x)=3x-10 のとき, (h*f(x)=h(f(x))=3(x+2)-10=3x-4=g(x) となり,題意を満たしている.

未解決 回答数: 1
数学 高校生

なんでこのような図になるんですか?

値 ます。 値の <. きいの が最大 xyの値 1. 件に対 3. 大きいの の向きは と一致 のとき, 23より、 27=2√2 その 例題 182 対数不等式と領域 不等式 10gyx/1/2を満たす点(x,y) の存在する範囲を開示せよ。 ( 津田塾大・改) 考え方] sagol 真数と底の条件 (数) > 0 (底)> 0, (底)1 底の値と真数の大小関係 a>1 のとき, 0<a<1のとき, logaplogag≧27 不等式の表す領域は,まず不等号を=とおいて境界線を求めるとよい。 ■解答 真数は正であるから, x>0 ……… ①1 aol 底の条件より, y>0,y=1 ......A 与式は10gx1/27より。 logyx 12logyy 2 対数と対数関数 (i) y>1 のとき, x≤y ² logyx≤logyy 1440L closely 1-> Focus 境界線は,放物線y=x2 (x0,x≠1) を含み, 直線y=0, y=1, x=0 を 含まない. 両辺はともに正より,両辺を2乗して、x≦y (i)0<y<1のとき,xyz S- 両辺はともに正より,両辺を2乗して, xzy よって, ① と(i),(ii)より, 求める領域は右の図の斜線部分 になる。 01 logaplogag Dsq 底が1より大きいか0と1の間かで場合分けを行う **** る範囲を図示せよ。 y>0より、真数の 条件を満たす。 不等号の向きは対数 の値の大小と一致 y-2log, x>1 不等号の向きは対数 の値の大小と逆 例題182 は, (i) y≧x2, y>1とx>0 (ii) y≤x², 0<y<1 t x>0 の表す領域を図示している。 ④ の条件は (i), (i) を場合分けするときに使用しているが ① は使用していないので、忘れないように注意しよう。 (人のy>0,y≠1 は 0<y<1, 1<y のことである。) 333

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