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数学 高校生

紫で囲んだところのように因数分解するのはどのようにしているんですか?

DATE fied from flask) fond F HAR 200 接線に垂直な直線 (法線) 点Pでない方を点Qとする、ただし、a≠0 とする。 曲線 y=x 上の点P(a, α²) における法線と、この曲線の交点のうち, (1) 法線の方程式を求めよ. Focus *[+2² halos $195. 接点で接線と垂直に交わる直線を法線と呼ぶ. (詳しくは数学Ⅲで学習) 点P(a, f(a)) における法線の傾きをmとすると, 接線の傾きが f'(a) のとき、 m.f'(a)=-1 つまり、m=f'(a) 1 frase (2-0)² + $99 ← fram thar (A) (-x)(o=o)G (1) f(x)=x2 とおくと,f'(x)=2x TEL より, 点Pにおける接線の傾きは, f'(a)=2a したがって, 点Pにおける法線の傾きをとすると 1 m・2a=-1より, m = __ (a+0) したがって, (2) 点Qの座標を求めよ. 1 微分係数と導関数 Px-a- CHERE (2) 曲線 y=x2 と直線y=- 2つの曲線① 2式からyを消去して、x=-x+α'+- BROOTRAN (x-2)(x+a+ 2a となる. 1 2a 接線の傾き f'(a)(0) ini よって, 点Pにおける法線の方程式は, y-a²=-2 / (x=a) £ y₁=y=-2/x+ a² + ²/²/2 2a x+a+1/12 の交点は連立方程式を解いて 交点のx座標を求め り、 る。 左辺に移項して因数 分解 点Pも交点の1つで 2a>=あるから,x=αる第6章 解になっている. 点Qのx座標は =0 (D)(8-DS) 1_22_1 "2a' --- a²+- *** V 4a² 1-2のとき、y=(-a-2 2a ·+1 することから よって、点Qの座標は, (-a- 4a² 法線の傾き [接線] まず, 接線の傾きを 考える. ( 接線の傾き) (法線の傾き) =-1 361 ジュー 2a 6)- 02 1 1030 f']]

解決済み 回答数: 2
英語 高校生

空所アについてです。わたしは①を選んだのですが、不正解でした。解説によると、「manyではwhatが導く名詞節全体を修飾できないから」らしいのですが、いまいちピンときません。何故manyじゃだめなのですか?教えてください。

Unit 1 Unit 2 Unit 3 3 H GXJ FIX [人間] 290 words 空所が多めの文は前後のつながりを丁寧に追うこと。 次の英文を読んで, 設問に答えなさい。 出題大学 広島経済大学 制限時間10分 6 p.21 The composer Mozart is famous for showing a talent for music when he was just a small child. However, ( 7 ) Mozart produced in his early years is not considered to be particularly outstanding. He didn't produce his first true masterpiece* until he was 21; pretty s young to be sure, but Mozart ( 1 ) already been composing for years by this time. 10 The figure of 10,000 hours has been suggested as the amount (1 of serious practice or study needed to truly master a skill. That is nearly two hours a day, every day, for 14 years. Natural ability is, of course, an important factor in success, but even someone as talented as Mozart couldn't become a "great" composer until he had put in* 10,000 hours of hard work. The same can be said of golfer Tiger Woods and computer genius Bill Gates. Most people in developed countries can expect to have a healthy life of at least 70 years, or 613,608 hours. Although that seems like a ot of hours, most people spend about a third of them asleep. Take way all the hours we "lose" moving from place to place, eating, etc., well as the time spent at work or school, and the amount of free me we have starts to look quite limited.

回答募集中 回答数: 0
英語 高校生

合ってますか?

EXERCISES. 各文の( )内の語を最上級の形にして入れ、[ ]内からは適当な語を選びなさい。 1) That bookshelf is the smallest in (small) [in / of] this shop. 2) Ann was the lukciest of 3) Naoki has the most of (lucky) [in / of] the three girls. (many) comic books [in/of] us all. 4) Canada is the second largest in (large) country [in/of] the world. 5) Oxford Street is one of the busiest in (busy) streets [in / of] London. 6) This scene is the funniest in (funny) [in / of] this movie. ②2 日本文の意味に合うように[ ]内の語句を並べかえ, 英文を完成させなさい. 1) オアフ島はハワイで3番目に大きな島だ. [third, island, largest, the] Oahu is the third largest island 2)この教会は私の町でとびぬけて古い [in, by, oldest, far, the] the oldest in This church is by far 3) 彼は台湾で最も人気のある俳優の1人だ. [the of, actors, one, most popular] He is one of the most popular actors 3 各組の文がほぼ同じ意味になるように( )内に適語を入れなさい. Hiroki is the smartest student in my class. 2) 3) Allen plays this team. ) ( ímportant ) as hope. ) ( important ) than hope. in Hawaii. ) (important ) than ( anything )( else (54) ④ 日本文の意味に合うように( )内に適語を入れなさい . 1) モンブランはヨーロッパで一番高い山です. No other (student ) in my class is as (smart ) ( 1) No other student ) in my class is (smarter ) than Hiroki. Hiroki is (smarter ) ( than ) ( any ) ( other ) student in my class. Hope is the most important thing of all. Nothing is (as Nothing is (more. Hope is (more Allen is the best player on this team. better ) ( than my town. Mont Blanc is ( the :) ( highest ) ( mountain ) ( in (2) 何か新しいことを始めることほどわくわくすることはない. (There 3)これはアメリカで5番目に古い大学です. ) is ( nothing ) ( more This is the 4) この美術館では、モナリザ以上に有名な絵画はない. (No :) ( other the Mona Lisa. in Taiwan. (→SS) ). ) any other ) ( player ) on ) Hiroki. ) Europe. ) than to start something new. "( fifth )( oldest ) ( university) in America. )( )( picture ) in this museum is more famous than

解決済み 回答数: 1
英語 高校生

この文の緑のマーカー引いてるところの、訳と構造を教えて欲しいです!特にcrimes for which のところがなぜそうなるかわからないです

and have 2 R not Advances in technology/over the past 200 years have been remarkable ght us many benefits/However, the integration of technology Into society has always been smooth/ The first industrial revolution began in Britain in the late 18th century/Machines developed at the time/could make clothes much more efficiently (1) 14 easily and cheaply than before. Even so not everyone felt happy about this at first. Groups of skilled weavers and textile machine operators known as Luddites feared 労働運動 that their jobs would be taken away/They began/a labor movem ement in order to protest and resist the widespread use of the new technology by factory owners. Their protest actions included destroying machines crimes for which some Luddites were killed by authorities. ようたい CO ↑ To Cut 27. 減速する we now know these technological advances did not/slow down. Over time, they became widely accepted and appreciated. Before long, other innovations like the steam engine were powering heavy machinery across Europe and beyond. The second industrial revolution, toward the end of the 1800s, brought the gasoline engine and the s use of electricity. The third industrial revolution, in the late 20th century, produced computers as well as digital technologies and communications. And, recently, experts have declared that developments in artificial intelligence (AI) and advanced robotics have led us into the fourth industrial revolution. Even today, however, we hear warnings about the potentially harmful effects of (2) contemporary technologies. Some observers claim that the latest AI inventions could have negative impacts on workers, businesses, and society as a whole. The main concern, as in past eras, is that machines will replace humans in the workplace. Thes- observers suggest that a large number of occupations might be lost to AI and robot in the next few years. Taxi and truck drivers, cleaners, and factory workers are amon those considered to be at risk. The fear is even expressed that the AI revolution might lead to mass unemploymen According to some experts, up to 800 million jobs could be lost globally by 203 Moreover, the workers who will lose their jobs to machines are likely to be those wit ewer skills and less education, increasing the gap between rich and poor. Some peop believe that this will create social conflict and instability. do not necessarily need to take such a negative outl

解決済み 回答数: 1