Grade

Type of questions

Mathematics Senior High

判別式を使った時にたまに答えと異なってしまうのですが、私の計算方法のどこがダメでしょうか、教えてください🙇‍♀️

回 円と直線の方程式からッを消長して得られるェの? 次方程式の 判別 のの符号 を調べち。 方針回 円の中心と直線の距離と円の半径の大小関係 を調べる。 異なる2 点で交わる <っ の>0 <つ d<ケ 円と直線が] 1 点で接する どの=0 で g=テ 共有点をもたない でっ の<0 <> d>テ IN 較因の条作は方針名 の>0 方針回 d</ これからの仙の押を求める。 3E "人 ーー ) | 方針印 の⑦を① に代入して整理すると SA (iTDeー2(mーDr+iー1=0 でtiY0 であるから。 月 7 WMをのとすると ちら=(-(mcD-rtDOmnD | 有 ニーD(Omー0ー(+) 四 ーー-2(が=リュー2(m+D(カーリ) 円① と直線 の が異なる 2 点で交わるための条件は の>0 よって 2(z+(カーリ>0 でotD-0co ゆえに ー1く刀く】 方針回 ① を変形すると e+DTHym(72 7 よって 円①の中心点(1. 0 [回] ym(x-D から、 直線のは常に点0、 0を 半径は2 である。 通る。 円① の中心と直線 ⑨ の距離をと で② をに すると, 異なる 2 点で交わるための 2 なーッーー0 条件は g<Y2. >(=り=0-| 2 を点(n。 0 と直線 ーー PP な+め+c=0 の還誠は に正の数 /7す1 を掛けて 2lzl<y2(+り 抽 婦負でないから, 2乗して47<2(+り で4=0。 Ba0 のとき (の+D(-D<0 ゆえに 1くく1 | 4<g つ < 90? 中ーー6y二9=0 …"⑪ と直線 yーな2 をもつような, 定数んの値の範囲を求めよ。

Solved Answers: 2
English Junior High

全訳お願いします!

*EKate and ber ived i 遇 r *parents lived in a small town. Her parents had a small Psgrocery store an worked there. They were very *busy every day。 They knew Kate wanted to visit many places with them。 but they had no Gime. "Te Yomi nm years later Kate became a *university student in New York、 On Saturday morning she went 10 the university Hibrary to study。 When she got there, some studente were talking about a *Hood. Wen dhe heard the name other *hometown, she wentto them and asked aboutthe food、 They setd. WS Sa it 0n the news Net now Kate yas surprised and cahed her parents many Bmes、 But *the hne Was always busy. So she went back to her hometown by car 3OJ he Ya Q her tone she sa many houses which were covered with mu When she got 0 he HOnse in th evening her parents were cleaning their etore。 They Yere surprised to see her Tate said TPmBack。 Ameyou OR? Tworied aboutyou。 1cahed yon many Ph btthetinewas alyaya busy.。Well、 what can 1 do to help you? Her jather said。 "Find anything we can stGiN eat an put iin a bag。 She and her parente etarted to ork。 found many things and put them in bae. They worked *unGl late that night and wete tiredubut Kate was ged to help her parents When hey fnished yorking, her mother sid Tete behewe Ionon9Y willbe a better day than today" The next morning her father ai to Kate, "Now comewith ns" "Where arewe goingto go7' "o ud and they have nothing to eat Lete gtve them OF dai"Why? Tworked hard last night beceNee 1thougbt <Kate、we must think about other people and dothe the *neighbors. Ther food is covered with m food.′ Kate Was aurprised to hear that and sa Then her mother said, 。。 Uaby the neighbore often took eare of yON beC9N8e We these thinge were for us jest thing we can do for them。 When 00 Y they knew we Were Very we didntask hem todoik btthey Ait pre muat help each other" Kate ere thinking and was *proud cf them. Her father said。 Now, lets go" The the store。 Kate hoped to see many and said to her mother “Today busy in the store. understood what her parente carried the bage and le js a better day than Yesterday smiling faces EE間潜2

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