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Mathematics Senior High

次の問題で青い線の移り変わりが分からないのですがどなたか解説お願い致します🙇‍♂️

例題 294 漸化式 [10]一般の分数型 (2) 5an+3 a1 X, An+1 (n an+3 1, 2, 3, ...) で定義される数列について an a (1) bn が等比数列となるようなα, β (α キβ) の組を1つ求めよ。 an B (2)一般項anを求めよ。 定義に戻る {6}が等比数列 bn+1=rb となる実数 rがある。 思考プロセス an+1 /a wan [≠α となる bn+1 = an+1 -β an [ ≠ β となる (条件 を利用) 6 (2) (1)のα βより, r = {6} は初項[ 公比 等比数列 Action》 漸化式 an+1= rants an-a は,bm= が等比数列となるα β を求めよ pan+g an-β an+1 a (1) bn+1 == 5an +3 an+3 a 46+1 を α で表し, an+1 B 5an +3 B b+1=rb の形を導く。 an+3 3-3a Aan+B=Alan+z)である。 an+ (5-α)an+3-3a 5-α 5-a 分子 (5-xlan+3-30 (5-0)(au+ (5-β)an+3-3β 5-β 3-3β an+ 5-β x: (5-plan +3=JP 数列 {bm} が等比数列となるための条件は (5-0)an+3-30 5-0 3-3a 3-3β √32 = =-a, =-B (5-p)am+3-38 5-p (5-P)(aue= Aut 3 Au f 5-d 5-β よって, α, β は方程式 3-3x=-x(5-x) すなわち α β は方程式 x²-2x-3=0 の2つの解であり x = -1, 3 3-3x すなわち α = -1, β = 3 る。 +1 公比 = (2)(1)より,数列{bm} は初項 5-a 5+1 5-β 5-3 = -1・3"-1 = -32-1 =-1, a1-3 =3の等比数列であるから 5-x =-xの解であ kα=3,β=-1 も条件を 満たすが,この問題では, |適するものを1組だけ求 めればよい。 an+1 an -3 an+1=-3n-1. 3-1 ・an +3" より an 3n-1+1

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English Senior High

緑線の部分ですがなぜgo to divingではなくgo divingなんでしょうか⁉️ 誰か教えてください🙇‍♀️

Story 1 ある日の英語の授業で, 朝美は兄の卓也 (Takuya) についてスピーチします。 本文と質問を聞き, 答えを○で囲みましょう。 [ A B © ] 2 Hello, everyone. Look at this picture. This is 4 5 brother. He's twenty years old. He lives いっしょに in Cebu, the Philippines. He studies English at a Takuya, my セブンがある 1つの らぁングウィッヂ language ステューデンツ school there. students at school. 8. 7 べんきょう エイジャン 'He meets many Asian ・Schoolの前はat アジアト あう 平日 ウィークデイズ ウィーケンジ Takuya goes to school on weekdays, and スクーバダイヴィング 「sometimes」 enjoys scuba diving on weekends. Cebu ハズ とったら× 10 ヒズ has many beautiful beaches. He and his friends go ダイヴィング 11 diving together. He really likes Cebu. ふんすう [65 words] ろくすう es.s とくべつな学校はんが付く ホッチ Ne langu Asian stude 0 weekd => > scuba Dhas ( Ohis □dive, a Cebu D... yea ・・・ Ogo ...in ―小学校の 自目 卓也がなぜセブ留学先に選んだのかを考えましょう。 [解答例 セブには美しい浜があり,スキューバダイビングができるから。 New Words language [léngwidz らぁングウィッヂ] 名言語, 言葉 old beaut beach banar [ai] di

Solved Answers: 1
English Senior High

fについてです 解説が載っていなかったため質問しています、。 なぜ、③を選ぶことができるのでしょうか?

Long-s doctrin holds that we are protected from fungi not just by layered immune defenses but ( e ) we are mammals*, with core temperatures higher than fungi prefer. The cooler outer surfaces of our bodies are at risk of minor assaults-think of athlete's foot*, yeast infections, ringworm*-but in people with healthy immune systems, invasive* infections have been ( f ). That may have left us overconfident. "We have an enormous (g) spot," says Arturo Casadevall, a physician and molecular microbiologist at the Johns Hopkins Bloomberg School of Public Health. "Walk into the street and ask people what are they afraid of, and they'll tell you they're afraid of bacteria, they're afraid of viruses, but they don't fear dying of fungi." Ironically, it is our successes that made us vulnerable*. Fungi exploit damaged immune systems, but before the mid-20th century people with impaired immunity didn't live very long. Since then, medicine has gotten very good at keeping such people (h), even though their immune systems are compromised by illness or cancer treatment or age. It has also developed an array of therapies that deliberately suppress immunity, to keep transplant recipients healthy and treat autoimmune* disorders such as lupus* and rheumatoid arthritis*. ( i ) vast numbers of people are living now who are especially vulnerable to fungi. Not all of our vulnerability is the fault of medicine preserving life so successfully. Other ( j ) actions have opened more doors between the fungal world and our own. We clear land for crops and settlement and perturb* what were stable balances between fungi and their hosts. We carry goods and animals across the world, and fungi hitchhike on them. We drench crops in fungicides* and enhance the resistance of organisms residing nearby. (s) ELSE

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English Senior High

青線の部分なんですが質問です! なんでenjoyedではなく先にsinetimesが来るので しょうか? 誰か教えてください🙇‍♀️

Story 1 ある日の英語の授業で, 朝美は兄の卓也 (Takuya) についてスピーチします。 本文と質問を聞き, 答えを○で囲みましょう。 [ @ B © ] 2 Hello, everyone. Look at this picture. This is Takuya, my セブン 4 5 brother. He's twenty years old. He lives いっしょに in Cebu, the Philippines. He studies English ata 1つの準 らぁングウィッヂ language ステューデンツ school there. 7 べんきょう エイジャン 'He meets many Asian ・Schoolの前はat アジアト あう 平日 ウィークデイズ : students at school. 8. Takuya goes to school on weekdays, and スクーバダイヴィング ウィーケンジ sometimes enjoys scuba diving on weekends. Cebu ハズ とったらや 10 ヒズ (has many beautiful beaches. He and his friends go ダイヴィング 11 ふんすう diving together. He really likes Cebu. ・ふんすう [65 words] ろくすう es.s とくべつな学校はんが付く ボッチ Ne langu Asian stude > weekd => > scuba Dhas ( Ohis □ dive, a Cebu D... yea ・・・ Ogo...in ―小学校の 自目 卓也がなぜセブ留学先に選んだのかを考えましょう。 [解答例 セブには美しい浜があり,スキューバダイビングができるから。 New Words language [længwid らぁングウィッヂ] 名言語, 言葉 old beaut beach banar [ai] di

Solved Answers: 1