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英語 高校生

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第 1 主 次の葵文を読み、設間に答えよ Urban legends consist of narrative accounts of events、 which are Presented as truth、hut which are in reality completely jalse。 They are usually passed on from storyteller to listener as factual accounts、with seemingly trustworthy sources。 warranted by some reliable、close acquaintanee such as ariend or relauye who eyperienced the event ( | ) or heard of it directly jrom the person or people involved. Sometimes news media are attributed as the source andl this gves additional backup to claims of being factual. The story often ends with an ironie or supernatural vist Most of these features are applicable to rumors as wel の Rumors bear significant similarities in content to urban legends。 In structure、 however, rumors do not look as formalized as legends. An urban legend usually has a well-elaborated plot and circulates in a complete narrative form, while a rumor's plot is generally less developed or even incoherent. The ending ofarumoroften ( 4 ) the ironic or supernatural tyist we generally find in a legend, Another difference between urban legends and rumors is ther 。durabihty Aljthough many minor and unimportant changes are made to urban legends while they are in cireulation, the core elements of plot remain unchanged through ime, and they continue to be told for many years。 Conversely、rumors have shorter lives and generally dissolve after a few weeks' circulation. り For example, in the story of “the vanishing hitchhiker.” a dmver gives aridetoa hitchhikker on a lonely road but subsequently discovers that the hitchhiker js really a ghost There are a lot of yariations among the specific details in the story、Sometines the ghost js met not on a road but at a party or a restaurant、Sometimes the ghost disappears just when the vehicle drives past a gaveyard。 Sometimes the ghost sleaves an itemn such as a book or a coat in the car, which is later identifed as haying belonged o him or her。、Sometimes he driver yisits the house where the ghost asked to be talken。and recognizes the hitchhiker from a family portrait Elements of tbe *disappearing ghost' story can be found in nmrratives dating as far back as 【he late

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数学 高校生

赤で色をつけた部分の符号が1つ目と2つ目でなぜ変わっているのかわかりません🙇‍♂️

3 ー ①, (@+8)x2ー6x+キ=0 … 炊の条件を満たすんの値の範囲をそれぞれ求めよ。 , ②のうち, 少なくとも一方が虚数解をもつ。 2) ①, ② のうち, 一方だけが虚数解をもつ。 について 1) いては, 2次方程式であるから。 の保数について。ム+8キ0 に っ について。 0 に注意。 ・ ② の判別式をそれぞれ の。とすると。 求める条件は の,<0 また の,<0 一 解を 合わをた箇 (和集合) (2) (の<0 かつ =0) または (の,=0 かつ 0) であるが, 数学1 でも学習したように。 <0. <0 の 一方だけが成り立つ 範囲求めた方が早い。 四 ・改町版チャート式基礎からの数学 1 A か.184 参照。 (付い央 連立等式 解のまとめは数直線 | に硬3 ②③ の 2 次の係数は 0 でないから 8キ0 すなわち キー8 <普通. 2 次方程式 このとき, ①, の判別式をそれぞれのの。 とすると の"Taxr+c-0というとき =(ーめー4(4ダ3)ニー3が12ニー3&(&ー4) をだし か 6 ? 次の便数。は0でないと イー(-3"ー(&+8&ニーゲー8&+9ニー(4+9)(4一1) | 考える< (0) 求める条件は<キー8のもとでブンヒアで:モ: の (07 2 と 20た 2 サオAcっ2ち (人き科のと7 婦20 から (を)0 ゆえに んぐく0, 4くた キー8 であるから <く一8, 一8くんく0, 4くん が0から (%+9(% dg よって。縛語 求めるの値の範囲は。③ と ④ の範囲を合わせで な<一8, 一8くんく0, 1くん (2) ①. のの一方だけが虚数解をもつための条件は <0. <0 の一方だけが成り立 めゆえに, ③, ④ の一方だけが成り めて 一9=ぁ<ー8, 一8くん<0. 1くんる4 6 69 | |

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