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数学 高校生

数Bの質問です! 56の(2)の答えの線が引いてあるところまでを わかりやすく教えてほしいです!! よろしくおねがいします🙇🏻‍♀️՞

解答 漸化式を変形すると bn=an-3 とすると bn+1=2bn したがって, 数列 (a)の一般項は,,=bn+3 より =-2"+3 bn=-2.2"-1=-2" よって、 数列 (b)は公比2の等比数列で、初項はb=a-3=1-3=-2 数列 (b.) の一般項は b=a-cとすると bn+1=2bn ae1-3=2(1-3) c2c-3 を解くと3 56 (1) 54,+2から 0.2-50+1+2 よって +2 +1 (5a..+2)-(5a,+2) ゆえに すな =5a1-5a, 5(a...) an= (2) b=a+1-amから ba1= @s+2@s よって, (1) で導いた等式から ba+1=5b 58 an+ ここで、2=54,+2=5・1+2=7より ■ 練習 55 (1) a₁=5, an+1=3an-4 次の条件によって定められる数列{a} の一般項を求めよ。 01=2, Qn+1=9-24 b1=0z-a=7-1=6 数列 (b.) は初項 6. 公比5の等比数列であるか ら b.-6.5-1 b.= (3) α1=1, n+1=/man+2 4 a=1, an+1=4an+1 50 よって, #2のとき この 練習 56 3 α=1, an+1=5a+2で定められる数列 {an} がある。 (1) an+z-an+1=5 (+10) を導け (2) bn=a+1-an とする。 数列 {bm) および数列 (an) の一般項を求めよ。 ゆえに -1 a=a+6.5-1=1+65-1 また 1-(5-1) よっ =1+6.. 5-1 3(5-1-1) =1+- 2 数 ゆ an 2 4.-(3-5-1-1) 初項は =1であるから,この式は"=1のと きにも成り立つ。 59 59 n=2のとき したがって, 一般項は a =1/12(3-5-1-1)

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英語 高校生

答えが合ってるか教えて欲しいです

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英語 高校生

全然わからないです😭 1問でも教えて頂けたら嬉しいです…🙏

Lesson 3. Palliative Care 部突破! いま最もアツく、最もイカ Medical treatment / Health STEP P 1 Read the Article Let's learn about palliative care, medical care that relieves pain, symptoms and stress caused by serious illness. 1) Palliative care, form of health care that seeks to improve the quality of life of patients with terminal disease through the prevention and relief of suffering. It is facilitated by the early identification of life-threatening disease and by the treatment of pain and disease- associated problems, including those that are physical, psychological, social, or spiritual in nature. As defined, palliative care begins at the point of diagnosis of terminal disease and can be delivered in a variety of health care settings. In general, it involves health and social care professionals working in hospitals, communities, hospices, and voluntary sectors. 2) Palliative care has been associated with many different terms, including terminal care, care of the dying, end-of-life care, and supportive care. However, these forms of care are not necessarily the same as palliative care. Likewise, palliative care is also sometimes described as hospice care. While hospice care does imply palliative care, it is specific to care provided near the end of life. In contrast, palliative care covers the duration of a patient's illness and, hence, may be delivered over the course of years. 3) Palliative care emphasizes three main principles: 1) A team-based approach is fundamental in managing distressing symptoms, such as pain, nausea, fatigue, and depression. It is also a necessary component in meeting the physical and psychosocial needs of the patient and his or her family. 2) Dying is a normal process. Symptom management is needed in order to help patients live life to the fullest until they die. 3) The synthesis of physical care with psychological and spiritual care fulfills a vital role in the overall care of the patient. 4) Palliative care is a global concern, and a steady rise in the number of people who are living longer with degenerative disease suggests that demand for palliative care services will increase in the are areas of intense. developments such Standards Framewo and Palliative Care Indian Association health care profes intended to help physical and psyc 5) In some place For example, the and has identifie framework is int days of life. Its communication, their families, a palliative c diagnosis duration: nausea H Log in to Watch th Hear resear the 2020 co

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英語 高校生

英語の長文です。 文法表現のあるところが知りたいです。 よろしくお願いします。

UNIT 1 5 Reading Passage 10 15 20 20 25 Listening There are more than 37,000 known species of spiders in the world in a wide variety of shape's and sizes! The largest spiders in the world live in the rain forests of South America and are known by the people who live there as the "bird-eating spiders." These spiders can grow up to 28 centimeters in length- about the size of a dinner plate, and, as their name suggests, have been known to eat small birds. In comparison, the smallest species of spider in the world is native to Western Samoa. These tiny spiders are less than half a millimeter long — about the size of a period on this page and live in plants that grow on mountain rocks. - Some people like to keep spiders as pets, particularly tarantulas, which are native to North America and can live for up to twenty-five years, Most people, on the other hand, do not like touching spiders, and a significant number of people are afraid of them, mainly because of their poison. However, despite their bad reputation, only thirty of the 37,000 known species of spiders are deadly to humans. Spiders actually provide benefits to humans, by catching and eating harmful insects such as flies and mosquitoes. - - The main thing that makes spiders different from other animals is that they spin web's to catch the small insects they feed on. The unique silk of a spider's web is produced by special organs found spider web is five times in the lower part of the spider's body. It is light, elastic, and strong stronger than steel. Additionally, it is completely biodegradable. This means that the web will making it perfect for uses completely decompose¹ and eventually return to nature over time such as making fishing nets. Some people have tried to raise spiders commercially in order to collect the silk these spiders produce, but no one has ever really managed to make a go of it. One reason why these businesses never stand a chance is because it takes 670,000 spiders to produce half a kilogram of silk, and all of these spiders need living insects for their food. In addition, spiders are usually solitary² animals, and need to be kept alone. Researchers at an American company working together with two U.S. universities may have found a solution to making artificial spider web. Using genetically modified silkworms,³ the company hopes that in the long run it will be able to make large quantities of very light, very strong fiber for medical as well as other uses. Additionally, because the manufacture of the artificial web is from living silkworms, the industry potentially would be non-polluting and less harmful to the environment

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生物 高校生

課題で出たのですが、予習の範囲で分かりません。教えて欲しいです🙏🏻

「基礎生物」 ・演習問題 転写 DNA 問1 次の文章の(1)~(6)に最も適切な語・数を答えよ。 20 ( タンパク質を構成するアミノ酸は (1) 種類あり、DNAの(2)つの連続した塩基の並びが一 つのアミノ酸を指定している。 DNAの塩基配列の中にはアミノ酸を指定する部分である(3)と、ア ミノ酸を指定しない ( 4 ) と呼ばれる部分がある。( 5酵素名 )によって DNAの塩基配列は写し 取られて RNA ができるが、その後(6)という過程で ( 4 )の部分が除かれて mRNA は完成す A 問2 アラニ 1) HOT.JA(N) 真核生物の遺伝子 (DNA)とそのmRNA を適切な試薬および温度で処理すると、 2本鎖DNAは1 本鎖に分離し、mRNA と相補的に結合する。 下図は、この結合の様子を模式的に表したものである。 ※この図は試験管内で実験的に作成された状態を示し、細胞内の状態を表したものではありません。 細胞内での DNA と mRNAの関係をよく理解したうえで考えてください。 (d) (c) - (a) (b) - (1) 図中の (a) (b) のどちらがDNA か。 an 0 (2) (2)図中の (a) (b) の間には、どのような塩基対が形成されているか、その組み合わせを全て答えよ。(正 式名称および記号) DNA:RNA ALV TとA ICとG GECOR O (3)図中の (a) 上の領域 (c) (d)の名称を答えよ。 (c) TTA da And (4) 次の文①~⑥で正しいものには○をつけよ。 ① 図(a)(c)の領域は、この後切り取られる。 Ana (2) 図の (a) の (d) の領域は、この後切り取られる。 RAMCI (3 図の (b)は相補的な RNA が合成された直後を表している。 (4) 図の(a)の(c)の領域がリボソームに運ばれ読み取られる。 GAEMON (5) 図の(a)の(d)の領域がリボソームに運ばれ読み取られる。 6 図の(b)がリボソームに運ばれ読み取られる。

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