なぜ（a-1）（b-1）（c-1）となるのでしょうか！

_ 少なくとも1っつは1 6十6十c三1 gpc= も1つは1に等しくなる ネネ 6c十cg+g5 のとき。 実数。 5 cのうち少なくと ることを証明せよ. Fo の どのうち少なくともむ1つは1に等 G に等しい (om または-の=1 または oニ1のことでと 実数eg。 について o/ 配置 6 ひら cのうち, あま RIPSAWGE <三1 または ヵニ1 または c=1 を利用する。 き 団 0 r er のことである. じたがって,。 (1)(6-1)(c-1)=0 … い 実数 7について であることを示せばよい. f cgの970 ①の左辺を変形すると, ぐg二0 または g0 (<-⑫-1(c-1) または ヶニ0 三(2一ら1)(c-1) Pc <2c一6一gc十g一5c十5上cー1 り立つことを示す。 0cニ(5c上cgよ6の二(gよ6寺のー1 る 26cニ寺cg二のる pc一5c二1ー1ニ0 るよ2よ<ニ1 したがって, g十6十c王1, gZc王5c十co十のの5 のとき, ご 等式①は成り立つから, ①より, 2 6一1三0-または. 2一1ー0 または c-1=0 よって, g三1 または ヵー1 または c一1 となり, の 5 cのうち少なくとも 1つは1に等しくなる. (別解) 実数 。 の とが与えられた条件を満たすとき, 3 3次方程式 9 実数g。 の cを解とする 3 次方程式は。 の寺62キcc二@ニ0 225c=ニ5c十cg十のの王ん (んは実数) とおくと, の3つの解をg, 2.? ダーテーを0 とすると, と表せる. に これを変形すると, ヶ*(z一D十(zー1)=0 (*-D(ダ"すめ=0 9+のキ7o=全 よって, ァニ1 を解にもつので, og, cのうち 少なくとも 1つは1に等しくなる. Gy=ー全 加 (ぁ.128 参照)

1番早かった方ベストアンサーにさせて頂きます！ 　至急お願いします🙇‍♀️

則2 決の敵斑は.高校生のナオヤ(Naoya) と ALT のモリス先生(Ms Morrs) の対苦です )の中にそれぞれ適する 1 語を英語できなさい この0の( にす ただし、 答えはそれぞれの( 指示された文字で書き始め、一つの 。 に1文字が入るものとします Naoya : Ms_Morrs : Naoya : . Ms Morms、 Iihearyouhke ) in Japan- Yes. 1 ike visiting many places all around Japan. Ii also like talking ji with people duning my trips_ isee、 Do you have any problems tw _ _ ) you stay there ? Not really Japanese people are very kind to me. Sometimes 1 cant their Japanese when they speak too(f )、 They try to speak more slowily right 吉

三枚目の問題がわかりません 医療保健　2019A

和光の美坊を謎A 中から是も身 なさい。 答えは1一4 の Nere is 。 aimple connection betmeen the smount cf moneyfeople make and their body shape. For example計 you cannot get enough to ea becaus you are poor. you will be thin. in rich countries, igsweyer being overweight is strongly linked to poverty。People with high incomes an afford high quality food and drink, gym memberships, Sports equipment. amd leisure facilities.n ich countries 人erefore。 ich people tend to be a lot healthier amnore active than poor people: Demsee/ehed to obesity 語3 a huge percentage をan costs in rich countries./Therefore/ governments want people to stay active at ees panese men feeKainple。 are expected to fllowr governmemt guidelines suggesting that they keep their waist measurementき3 below ight crimees This beoones more dificu as cne get der and kes ac / surromnded by lots of lovely food and drink: Opse dhis seion js not measurement にとニーゴー hen he was a young man_He was auch taler thamrRdinary Briish people and he was an excelent sportsman/ People thought he was exremely handsome. 2 1596.半 tne age cf でRhe became kess acthe afer le any ーー At that dime。 Pitish wool exports were very proRtable。 devoted to sheef and less to crops。 rere hg smounts of meafn the jings kitchens pfewer edible plants he British grew less of their own od and bougte more high gedhty food fom emwss/Enermous otantties of sugar were imported. Hをnrys kitchens were designed to feed more than a thousend people eyery day adhe /roriic ciiii 近 the royal cooking ane shocked many foreign visitors./ At the same time wood was being replaced by coal as a source of heat 門 England had a waist

(4)ってどこから③って言うことがわかるのですか？

We can sopply the orecast data but。 in order for it to work。 the mipamies must ompletely change their approaches" he says. Cs troe that thie male還iamg a major risk。 but T can safely say that it has produced resntsy Wiile the government and bosinesses nvolved in the food indnstry have begun to take measures to cut food loss. it is important for hooseholds to also do theirr bit Remember。 households produce 2.82 milion tons of food waste ewery years The Japan Times August 12 2017 (1) 人所| 16 |] -| 15 | に入る最も半切な6るのを次の中からそれぞれつ選び語そ の番号をマークで 。 ⑩ ewa maeh @ fw @ me FL 7 」@ sms ahaf ⑧ wmesame 。 @ ae ⑩ amahze analyzed 。 ③ analyzes 。 @ ams (2) [持続可能な開発のための国達の21907ジェンダ」 があげている人呈和の前江林 値として. 最も適切なものを次の中から1つ選び。 その香号をマークゃよ ⑩ 紹3他トン ④ $6代5万トン @ 交4億3千万トン ⑳⑨ 約1値3万トン (3) 下義部1) の"Other leghlaton" が日指していることとして。 本玉に六べられでいる昌 も導切なものを次の中から 1 つ選び, その番号をマークせよ。 ⑩ 3Re をスローガンとして策李的に食品放棄物を減らす。 @ 政育が決めた是を超えて食品を廃抹した條業に告務を課す

答えは2なんですが、なぜ3だといけないんですか？

) to practie Not until doctors have completed their internships ( (東放 medicine as a profession. ① they begin ② can they begin ③didtheybegin ③④theycould begin

この文を訳して欲しいです。

支広No.18 了Isabella Bird was an English explorer and writer who was bom mm 1831. When s YS 3 child, she was oftcn sick. Her doctor suggested that traveling might hejp better. Therefore, her father began to take her on trips. She soon started her travels、and many of her stories were published in n uestion: Why did Isabella Brd start to rravel2

Here are some tips の意味がわかりませ

3(1)の答えってこれで合っていますか？？

ーー 四 計議還詳齋 。 39 ce ivicy works in the bran < 1 1 te Neuroscience is actively investigating how ore De um ta inihlghp oreatiyeipsopiethe Yano 王3 re en 較 5 5 sd especially well togeuher There fm e high ievelofeeopen and communicate請隊 9 HidecpecatiougDtie keB0FcGAi2AEe 叶 忠 1 that way。 or whether they learn to be 1 nurture" ani ゆo those regions. whether creative people's brains are bor js sl not dleac Tr is athe old question of *Ymature Ver 了のSome people insist that creativity comes about by TmanS is a gift from God, they say。 "Farfetched, yes, bu there # creative people do have a gift gh to have some esse 1 personality traits or intellectual habits: curioSity. flexibility, independence. And tm Godq but by 。another *stroke_of luck 一 bemg br habits are made possible not by This suggests that it we ーー of “"divine inspiratons is some truth to thie his ide ド They are fortunate enoul up in circumstances that allow creativity to "Hourish。 given the right environment we can allbe creaNe According to Pyc7ofogy 76doy。 we do have to be hapPy OF at least have a positwe emotions like fear, anger, Sadness am Research has shown that negative le means being fascinated with (We Tt inspires us to pic 語 15 attitude. anxiety do not lead to creativity A positive attitud 。Tt makes us want to explore and dicoVer world around us. 4nd different perspectives, accept new ieas一al ks l new skills, see things fronl neW to creativity In an interview, James Cameron, the director of 7iizic and Apfo7。 offered some *foster creativity。 One important thing Surround your visual field with stimnlating people am is to "be *merciless on yourseli says Cameron、 is t0 ee thoughts on how to on other people's creativity. things.′ But 。even more important, SayS Cameron, *Dont get high on your oWn supply” SmorsW Keeping a sense of objectivity is crucial Oscience 神経科学 divergent 多彩な "nature"' versus "nurturer [生まれ]対[育ち] irafion 神の啓示 farfetched 信 じがたい stroke of luck 思いがけない幸運 fb merdless 守幸しない

答えがないので、答えを教えてください 私の答えは、(1)c (2)c (3)a (4)a (5)c (6)d (7)d (8)b (9)c (10)c です

0⑪ ⑫ ⑬ ⑭ ⑤⑮) ⑯ ⑰ IO ⑲9 次の1)-0の各文の空欄を埋めるのに最も適当な語句を、a 一dの中からそれぞれ ーーつずつ選び、記号で答えなさい。 My mother wouldnt ( ) me eat more than two small cookies a day. a. admit b. permit c・ let d. get Before taking his vocabulary test the young boy ( ) studied the test words. a. must b. had to c. should have d. didnot When the weather is clear, you can see the mountain beautifully ( ) on the lake. a. reflects b. reflected c. toreflect d. reflecting Tulips are beautiful but roses are ( ) more beautiful a. much b. very c・so d. most Tcan remember the time ( ) cell phones were stil rare. a・ 2S b. since c. when d. until Thave two tennis rackets. You can use ( ) one you jike. a. whenever b. however c. whatever d. whichever Can you lend me that comic book when you ( ) reading it? a. be finished b. wilhave finished c. wilfnish d. have fnished Does she have ( ) furniture in her new apartment? a. many b. any c. few d. lots Studying overseas wi ( ) you to get a broader view of the world. ado oo に

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Reading 読解 | Thems 動名語 EE きなものになると猛入な風が吹き 24 き荒れ。 その通り道にし 者や班物さえ吹き飛ばしてしまいます でCZceoんxenっcase ましょう。 Kansas One day her farmhouse, with Dorothy 注 c8ught in a huge tornado and blown away。 Fortunately, the house fnally lands safely on the ground. inside, 人KOreo5Sta5fS when dry cool air moves oyer humia varm air The tm im 8es anickdy and canses strong winds. This sometimes develops Hato a tornado。 So、 tornadoes tend to happen when the seasons change- Since they occurina ery limited area,they are estremely diffcult t0 predict. 耳ere im apan we have fewer tornadoes than in the United States, but they 15 can occuranywhere in our country WWhen a tornado occurs。 we may not be -as glucky as Dorothy So, here are some tips fo avoiding injury from a tornado. In a house, go to the 1owest floor and stay in a room without any windows hke a bathroom or closet。 there is a window, draw the curtain、Then hide under a desk ) or table. Tf you are outside, seek shelter in a strong building. 上 is no use iding in a prefabricated hut or garage。 Also』get as far away from trees, power poles and cars as possible. み (232 words)