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English Senior High

Power on 2のLesson 6です!写真が本文なのですが、Part 3にはいくつの長所が書かれてますか?

Tas Lesson6 Vegetable Factories 予習プリント PAF Task-1: Translate underlined parts into Japanese C C PART 1 Takumi: Angelina, have you ever heard of vegetable factories? I learned about them for the first time on TV last night. Such factories were first built in Denmark in 1957, and similar factories were PAI also introduced in the US in the 1970s. Angelina: Vegetable factories-yes, 1 know about them, too. In Japan, they were first built in the early 1980s to produce kaiware sprouts. These factories are now attracting much attention as a new type of agriculture I hear new vegetables like frilice lettuce and ice plant are being produced there. Takumi: Wow! You really knowa lot about vegetable factories. Angelina: Would you like to know more? Takumi: Definitely! もちろみ に C フリルレタズ C PA C C C PART 2 C You may be surprised to hear that we can grow vegetables without the sun and soil. But that is what people do in vegetable factories. In these factories, electric light and fertilized water are used instead of the sun and soil. Temperature and humidity are also controlled. It seems that limited space in vegetable factories is not a big problem. Workers fully use the space by stacking shelves of vegetables. Actually, you can find small vegetable factories in the previolisly wasted space of office buildings or restaurants. At present, the main crops from vegetable factories are leaf vegetables. But in the near future, PA C C Ta more varieties of vegetables are sure to come. し]必ず…する PART 3 What are the good points of vegetable factories compared to traditional agriculture? For one thing, they can provide a stable supply of vegetables, even in bad weather conditions. For another thing, vegetables grow much faster in a controlled environment. Other good points include no use of chemicals and good taste with more vitamins. Unfortunately, vegetable factories still face one challenge. Running them requires a lot of money. Because of this cost, these vegetables are expensive to buy. Hopefully, in the near future, we will have solved this problem. うまくいけば PART 4 文に、科に Talkumi: Agriculture without the sun and soil. Hmm. That's a great idea indeed. Honestly, Ive got a bit of, ahem, “agriculture shock" from what you've just told me in a good way though. Angelina: Ha-hal Have you? Good. If we can develop vegetable factories on a large scale, we may be able to solve the problem of food shortages. Takumi: Yeah, I agree. And the way we view vegetables may change whether we like it or not. Oh, by the way, Angelina, culture and agriculture are closely related, as you can see from the words. Agri-means “farming," and culture means “to grow something." Angelina: Oh, so you're giving alecture now! 422words

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Mathematics Senior High

この例題の問題で等号はなんちゃらかんちゃらx=3の時成り立つって書いてあるんですけど。 このx=3はどこから出てきましたか?? 説明お願いします🙏 語彙力なくてすいません!!

号が成り立つことはないので,左辺の最小値は 12でない。 したがって, このようにい 基礎例題 24, 25 の式の大小比較 (相加平均)2 (相乗平均) を利用した最大 · 最小 発展例題 30 9 展例題 31 bを実数とし、a+ r>0 のとき, x+この最小値を求めよ。 ミよ。 (相加平均)と(相乗平均) と最小値 CHART GUIDE) ART GUIDE) 9 9 適当 x x a+b=2 か一 数)であるから, (相加平均)> (相乗平均)が利用できる。 のとき成り立つから, x=ー x T ab=0, 9 のとき最小値をとるといえる。 * 入 式を証明す 9 等号は, x=- x 解答 -b=2 から b であるから 解答計 x>0, >であるから, (相加平均)2 (相乗平均) により x って 2aキ 9 -=2·3=6 x* x 9 01ト-一和x+ーに対し,こで ミー+X x 9 積xー=9 が一覧 9 したがって +ニ26 X x たがって ー式の値が6になるるっに xの値が存在するこ 等号は, x>0 かつ x=_ すなわち x=3 のときに成り立つ。 x よって x=3 のとき最小値6 必ず確認する。 したが一 注 不等式 A2mについて, 等号が成り立つことがなければ, m はAの最小値とはり ない。例えば,p.47の(*)の不等式 x+ D, 2 9 y+ 212 は不等式自体は成り立つが、。 式から最小値を求める場合は, 等号が成立するかどうかを確認する必要がある。 x 515 eC 参考 y=x と y=ー のグラフから, x>0 における y=x+= グラフは右の青線のようになると考えられる(厳密には, 数学II x で学習)。 9 したがって, x=3 のとき最小値をとることが1 の x yーェ+ 6-

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