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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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数学 高校生

なぜxをαと置き換えるんですか?? その数字がαであるのはなぜですか? あとα、kは実数であるから〜 のところ、kは問題文に書いてあるからわかるんですがなぜαまで実数と言い切れるんですか? 色々分かってなくてすみません😭

要 例題 43 R5 1/27× 73 00000 虚数を係数とする2次方程式 の方程式(1+fx2+(k+i)x+3+3ki-0 が実数解をもつように、実数k の値を定めよ。 また、その実数解を求めよ。 1 CHART & SOLUTION 基本 38 2次方程式の解の判別 判別式は係数が実数のときに限る DEQから求めようとするのは完全な誤り(下のINFORMATION 参照)。 実数解をとすると (1+1)q' + (k+fa+3+3ki-0 この左辺をa+bi (a, は実数)の形に変形すれば、 複素数の相等により =0.6=0αの連立方程式が得られる。 解答 方程式の実数解をαとすると 整理して (1+i)²+(k+i)a+3+3ki = 0 (a²+ka+3)+(a²+a+3k)i=0 akは実数であるから、+ka +3,+α+3kも実数。 x を代入する。 a+bi=0 の形に整理 この断り書きは重要。 2章 9 2次方程式の解と判別式 よって +ka+3=0 ① a²+a+3k=0 ② ①-② から (k-1)a-3(k-1) = 0 ゆえに よって [1] k=1のとき (k-1)(a-3)=0 1 または α=3 ① ② はともに これを満たす実数 となる。 +α+3=0 は存在しないから,不適。 [2] α=3 のとき ① ② はともに 12+3k=0 となる。 ゆえに k=-4 [1], [2] から, 求めるkの値は k=-4 実数解は INFORMATION x=3 素数の相等。 αを消去。 inf を消去すると α-24-9=0 が得られ、 因数定理(p.87 基本事項) を利用すれば解くことがで きる。 D-12-4-1-3=-11<0 ①:3'+3k+3=0 ②:3'+3+3k=0 25 2次方程式 ax2+bx+c=0 の解を判別式 D=4ac の符号によって判別できる のは a b c が実数のときに限る。 例えば,a=,b=1,c=0 のとき 2-4ac=1>0 であるが, 方程式 ix²+x=0の解 はx=0, i であり、 異なる2つの実数解をもたない (p.85 STEP UP 参照)。 PRACTICE 43° xの方程式 (1+i)x2+(k-i)x-(k-1+2i) = 0 が実数解をもつように, 実数kの値 を定めよ。 また, その実数解を求めよ。

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