この問題についてです なぜ(x+y)をかけようと思いつくのですか？

*「86 x>0, y>0, x+y=1 のとき, ニ+の最小値を求めよ。 (25点) (神奈川大 x y 70,番2004 相加タと練花9の関係から るの のを定 ニ あて寄の最小値は である。 ーズーガ+1 スリ=1 fr (xrs)ー/ スンタァプダー1 メター 2 2

何故このような式になるのですか？ 式の組み立て方が分かりません

Check 階金る天支 08** 例題 181 約数の個数 次の問いに答えよ.ただし, 約数はすべて正とする。 (1) 200 の約数の個数とその総和を求めよ.貴地 (2) 2004の約数は全部で何個あるか. また, その中で偶数は何個あるか求 (東京工科大) めよ。 考え方素因数分解により,a×6の形になるときの約数の個数は, (+1)(q+1)個 約数の総和は,(1+a'+a°+……+a^)(1+b'+6+…+6°) となる。 (2) 2004=2°×3×167 より, 約数が偶数になるのは, 1以外の2° の約数を含むときで あるから,2か22 を含む約数の個数を求めればよい。 200=2×5° 解答(1) 200 を素因数分解すると, (3+1)×(2+1)=12 3 より,約数の個数は, 積の法則 12個 2! 2° 2° 1|1-1|2-1|2-121 5|1-5|2-5||2-5|2-5 また, 約数の総和は、 ラ (1+2+2°+2°)(1+5+5°)=465 (2) 2004 を素因数分解すると, 2004=2*×3"×167" (2+1)×(①+1)×(①+1)=12 より,約数の個数は, 12個 合 また,偶数の約数は,2か2°を含むものだから, 出る自 2×(1+1)×(0+1)=8 偶数になるのは、1以外の 22の約数を含むとき 2より,偶数の約数の個数は, 8個 8賞) 田 Tocus る

二問お願いします

49[2004 神戸薬科大] |複素数平面上で,虚部を正とする複素数 z の表す点が原点を中心とする半径1の円周上 を動く、このとき, w=(1+1)z+1の表す点の軌跡を複素数平面上にかけ。

何回計算しても2.2m lになってしまうのでやり方教えてほしいです！

「I HI 2) 0.025 mol/L の硫酸 20mL に, 気体のアンモニアを通じて中和するに は,標準状態で( )mL のアンモニアが必要である。

数Bの漸化式の問題です。 (2)のマーカーの部分はなぜそうなるのですか？ Σ(k=1)(n-1)2^k とかだったら 2×｛2^(n-1)-1｝/2-1 となるのは分かりますが、今回のはΣ(-5)^(k-1)でも ^n-1のままな理由が分かりません。 得意な方教えてい... 続きを読む

基本 例題123 隣接3項間の漸化式 (1) 次の条件によって定められる数列 {an} の一般項を求めよ。 572 (1) a=0, az=1, an+2=Qn+1+6an p.571 基本事項口 重要133 (2) a=1, az==2, an+2+4an+1-5an=0 指針> まず,an+2.をx, anti を x, an を1とおいたxの2次方程式(特性方程式)を解く。その 2解を a, Bとすると, αキBのとき an+2-aan+1=8(an+1-can), an+2-Ban+1=α(an+1-Ba.) が成り立つ。この変形を利用して解決する。 (1) 特性方程式の解は x=-2, 3→解に1を含まない から, ④ を用いて 2通りに表 し,等比数列 {an+1+2an}, {an+1-3an} を考える。 (2) 特性方程式の解は x=1, -5→解に1を含むから, 漸化式は an+2-ant1=-5(an+1-an) と変形され,階差数列 を利用することで解決。 解答 (1) 漸化式を変形すると an+2+2an+1=3(an+1+2an) an+2-3an+1=-2(an+1-3an) Oより,数列 {an+1+2am}は初項 az+2a=1, 公比3の等比 イx=x+6 を解くと, (x+2)(x-3)=0から 0, x=-2, 3 α=-2, B=3として指針 ののを利用。 数列であるから an+1+2an=37ー1 3 2より,数列 {an+1-3an} は初項 a2-3a1=1, 公比 -2 の等 比数列であるから an+1-3an=(-2)" の 3-のから 5a,=3"-1-(-2)"ー1 lan+1 を消去。 は 1 したがって a, 5 = 3-(-2)"} (2) 漸化式を変形すると ゆえに,数列 {an+1-an}は初項 a2-a=2-1=1, 公比 -5 の等比数列であるから よって, n22のとき an+2-an+1=-5(an+1-an) (x+4x-5=0 を解くと、 (x-1)(x+5)=0から an+1-Qn=(-5)"ー1 x=1, -5 n-1 an=a+2(-521+ k-1 n-1) k=1 別解 漸化式を変形して -ロ-(-3)) 2 2004) an+2+5an+1=an+i+5aa よって an+1+5am 2-1 n=1を代入すると,(7-(-5)}=1であるから,上の式 =an+5an-1 はn=1のときも成り立つ。 =……=a+5a:=7 an+1+5an=7を変形し, したがって a,=7-(-5)} 7 An+1- 6 6 から an= 練習 次の冬件に

英語に自信がある人回答づくりお願いします！ ※書き込みは気にしないでください。

第3問 次の英文を読んで、 設問に答えなさい。 AThe Working Time Regulations (WTRS) introduced a new right to paid holidays for most workers, However, some workers were not covered when the WTRS came into force in October 1998. Since the regulations were amended, with effect firom 1 August 2003. the majority of these workers have been entitled to paid holidays, and since 1 August 2004 the regulations have also applied to junior doctors. Workers who qualify are entitled to no fewer than four weeks of paid holiday a year, and public holidays (normally eight days in England and Wales) count towards*1 this. However, workers and employers can agree upon longer holidays. For the first year of work, special accrual*2 rules apply. For each month ofemployment, workers are entitled to one twelfth of the annual holiday. After the first year of employment, you can take your holiday entitlement at any time, with your employer's approval. A) Before taking holidays, you must give your employer notice of at least twice the length of the holiday you want to take: for instance, to takea five-day holiday, you must give at least ten days' notice. If your employer does not want you to take that holiday, they can give you counter-notice equal to the holiday 一 for example, five days' notice not to take a five-day holiday. If the employer wants you to take holiday at a given time, e.g. when there is a shutdown at the same time everyyear, they must give you notice of at least twice the length of the holiday. There is no right for the worker to take that holiday at a different time. Holiday cannot be carried over to the next year, unless your contract of employment allows this to happen. Nor can you be paid in lieu of*3 your holiday. However, when you leave the job, you are entitled to receive payment for any outstanding*4 holiday, provided your contract specifically allows for this. It may be that your contract gives you better rights, or your holiday rights might be specified in a collective agreement. Your union representative can advise you on this. 【出典】 Cambridge English IELTS 8, Cambridge University Press, 2011, p.110を一部 改変。 *1 count towards ~ : ~に算入される *2accrual: 付加, 自然増加 *3 in lieu of: ~の代わりに *4outstanding : 未処理の

英語に自信がある人回答づくりお願いします！ ※書き込みは気にしないでください。

第3問 次の英文を読んで、 設問に答えなさい。 AThe Working Time Regulations (WTRS) introduced a new right to paid holidays for most workers, However, some workers were not covered when the WTRS came into force in October 1998. Since the regulations were amended, with effect firom 1 August 2003. the majority of these workers have been entitled to paid holidays, and since 1 August 2004 the regulations have also applied to junior doctors. Workers who qualify are entitled to no fewer than four weeks of paid holiday a year, and public holidays (normally eight days in England and Wales) count towards*1 this. However, workers and employers can agree upon longer holidays. For the first year of work, special accrual*2 rules apply. For each month ofemployment, workers are entitled to one twelfth of the annual holiday. After the first year of employment, you can take your holiday entitlement at any time, with your employer's approval. A) Before taking holidays, you must give your employer notice of at least twice the length of the holiday you want to take: for instance, to takea five-day holiday, you must give at least ten days' notice. If your employer does not want you to take that holiday, they can give you counter-notice equal to the holiday 一 for example, five days' notice not to take a five-day holiday. If the employer wants you to take holiday at a given time, e.g. when there is a shutdown at the same time everyyear, they must give you notice of at least twice the length of the holiday. There is no right for the worker to take that holiday at a different time. Holiday cannot be carried over to the next year, unless your contract of employment allows this to happen. Nor can you be paid in lieu of*3 your holiday. However, when you leave the job, you are entitled to receive payment for any outstanding*4 holiday, provided your contract specifically allows for this. It may be that your contract gives you better rights, or your holiday rights might be specified in a collective agreement. Your union representative can advise you on this. 【出典】 Cambridge English IELTS 8, Cambridge University Press, 2011, p.110を一部 改変。 *1 count towards ~ : ~に算入される *2accrual: 付加, 自然増加 *3 in lieu of: ~の代わりに *4outstanding : 未処理の

英語に自信がある人回答づくりお願いします！ ※書き込みは気にしないでください。

第3問 次の英文を読んで、 設問に答えなさい。 The Working Time Regulations (WTRS) introduced a new right to paid holidays for most workers. However, some workers were not covered when the WTRS came into force in October 1998. Since the regulations were amended, with effect from 1 August 2003, the majority of these workers have been entitled to paid holidays, and since 1 August 2004 the regulations have also applied to junior doctors. Workers who qualify are entitled to no fewer than four weeks of paid holiday a year, and public holidays (normally eight days in England and Wales)count towards*1 this. However, workers and employers can agree upon longer holidays. For the first year of work, special accrual*2 rules apply. For each month ofemployment, workers are entitled to one twelfth of the annual holiday. After the first year of employment, you can take your holiday entitlement at any time, with your employer's approval. A Before taking holidays, you must give your employer notice of at least twice the length of the holiday you want to take: for instance, to take a five-day holiday, you must give at least ten days' notice. If your employer does not want you to take that holiday, they can give you counter-notice equal to the holiday for example, five days' notice not to take a five-day holiday. If the employer wants you to take holiday at a given time, e.g. when there is a shutdown at the same time every year, they must give you notice of at least twice the length of the holiday. There is no right for the worker to take that holiday at a different time. Holiday cannot be carried over to the next year, unless your contract of employment allows this to happen. Nor can you be paid in lieu of*3 your holiday. However, when you leave the job, you are entitled to receive payment for any outstanding*4 holiday, provided your contract specifically allows for this. )It may be that your contract gives you better rights, or your holiday rights might be specified in a collective agreement. Your union representative can advise you on this. 【出典】 Cambridge English IELTS 8, Cambridge University Press, 2011, p.110を一部 改変。 *1 count towards ~ : ~に算入される *2accrual : 付加, 自然増加 *3 in lieu of: ~の代わりに *4outstanding: 未処理の

この問題は和訳の部分だけで英訳した方がいいですか？それとも文章読んでから書いた方がいいですか？人によるのは承知の上で意見を聞かせてください🙇‍♂️

I| 次の文章を読み、下継部分の日本語を英語に直しなさい。: に In my classes, I often tell my students, "Get outi" I'm not thrówing them out of the classroom; I'm_encouraging them to get out-of Japan. to study abroad. Japanese university students are often hesitant to study abroad, but I argue that nothing could-be more.important. Why.not go? I ask them: You can always come back. Recently, the education ministry has been askdng the same question -but going one step further, by. offering: money! To encourage. students to study abroad, the ministry announced it will start offering funds for universities to expand and imprave study abroad programs, (そうすることがこれまで以上に 多くの日本人大学生を留学する気にさせるだろう) Actually, more students did study abroad, before. (2004年から2009年にか けて、日本から海外への留学者数は3割近く減少した). number of students. from, Korea, China and India studying abroad more than doubled during. that same period, according to the Institute of. International 2) In contrast. the Education, a U.S. nonprofit organization. : (日本と他のアジア諸国との差は年々 広がっている)。 Of course, Japanese students may be exposed more to. foreign culture and get more second language contact inside: Japan The opportunities here to study other languages and have contact with people:from other countries are fairly numerous, especially in big cities. (しかしそれは他国に行ってそこの文 化に浸ってみるのとは同じではない) (4 出典 Michael Pronko, Stiudy Abroad? Why Not? 週刊 Student Times, ジャバ ンタイムズ社 2012年4月20日 記事の一部を改変

緑線は何を表していますか？そう表す説明を書いていただけると嬉しいです

当 ーー PePS usually donT afTTend せ. しかし受賞者たちはその式に( 由恒 いぶヽ)のが ゃ Tn 2004. 2004 年に, Halle Berry received +he worst acfress ハル・ベリ Qward qand oftended +he ceremony, She adiwonian Academy Award in 2001. So she was applauded by many for attending.