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English Senior High

(5)について質問です。 答えは(A)ですが、自分は"否定的な観点から"で(B)のdenyingを選びました。なぜ(B)が違うのでしょうか。文法的に合わないからなのか英文の意味的に違うのか教えてください

北海道大文系前期 2019年度 英語 11 de initial beliefs. This thinking is (3) confirmation bias. To par confirmation bias, university students learn how to think and debate critically. These skills are best acquired when we see arguments from mation bias. To (4) 70Ì grat 66 81 BLUSI 1108 1 how (5) points of view.perspoally. Is 8701 od olqoq omo2 abreht bre ylimat wo diw dovo) ni yata bax nem (1) (A) create (B) inspect swensilio gom od 10 meten! (C) match w obie overlool-of-sos) (2) (A) corrected 10 9 gasts est som (D) seek www.jedi svoited stesimimmos o te wo seal vigniasoroni English. You (B) explained soe isdi en 190 ristà senten (D) verified inso te IS oni ni owo ligon (B) identified sviti og sho 21 patao molt llw gabosanos baseert galle (3) (A) considered (C) named 101 91691 to w kos (4) (A) disprove OCHLOS om labos wo igbounT shot mollesinines note kwe (C) questioned (C) overcome smo2 ellila one 100 ( 5 ) (A) conflicting (C) rejecting travery lw mo (D) referred of yeso won ei 1 Blog De to sonotipoanco 97 skqosq xanibrord ummarizing (B) distance TIESI sigoo bus (D) withdraw bus golavab o stds 31 sriv no 978 ice, con (B) denying Jadi basa S (D) surprising mi gribusqxo bus gantopos alquoq

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Mathematics Senior High

丸で囲った式をどうやって出すかがわかりません。 あと例題と練習で似たような問題なんですが練習の方が最後の方に向きの説明を入れなければならないのはなぜですか?練習の方は平面上のベクトルと書いてあるからだと思ったんですがなぜ平面上だと向きの話が必要で例題の何も書いてない普通のベ... Read More

3 |C1.14 d-8-81-457 x+√3/9 平面上のベクトル, 方 が |20+6=1, |a-36|=1 を満たすとき, a +6 | の最大値, ga 1 最小値を求めよ. 8800 (1) 2a+b=u.......①, a-36=1... ② とおくと, ||=1, |v|=1 ① ② より, a, を で表すと, ICT.11 a=³u+v 7 a+b = よって, 10+12=1 =4-20 7 4u-v 7 2 4u ・ひ 7 49 (16×1²-8u v+1²) [ 49 =1 (17-84-7)..... 49 √(16|u|²—8û•v+|v|²) 0=²1+5= ここで、より したがって, ③より, 9 49 lã+620 *D. /slá+b== 0 0812020 ++①×3+② より, TW=10+58/ 0-1 (0+5) 7b=u_2v ≤lá +61²≤ 250 -1≤u v≤1 18 きとは逆向きで ||=||=1 であるから, すなわち, ①② より, 2a+b=(a-36) 最小値 2 7a=3u+v ①②×2 より, -=0|2|=1, |v=1 a +6= 2 となるのは、=-1 のときであり、このと 2020 ed ab=alb|cose 80-8-1≤cos0≤1 £4, €1.50 -Tallosa·b≤|a||b| A-3A1=158) (1) cos0=1 より, 8=0° | +6= 2 となるのは、 v=1のときであり,このときのとき, ひとこは同じ向きで ||=|=1 であるから, すなわち, ① ② より, 2a+b=a-3 i=b したがって, a=-4b このとき, 2a+6=|-76=1 より, 0A +30 ROU 条件を満たす a, が存在す ることを確認したが,省略し てもよい。 〇京 (⑧) このとは川のとき、 u=v cos0=-1 より 0=180° HA OA 08 したがって, d=23236 a= co2³, 12a+b=26=10, 16A-Am-+-HA9)S よって, la +6| の最大値 1408OA0 のとき HA-OAS-ON TOA $18A1-A OAS ALEBA OSHEANS 2xy+2x+2xs と同様に展開する。

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English Senior High

(21)の答えが3になるのがなんでか少し分からないです…わかる方いますか??

(21) (22) (23) Any Change? Long ago, humans did not use money. Because they often could not produce everything that they needed, they traded some of their goods for goods made by others. Gradually, the goods that they exchanged were replaced by cash. For hundreds of years, metal coins and paper bills that can be exchanged for goods and services have been produced. Cash is convenient for many people because it is easy to carry. At the same time, though, it ( 21 ). Another disadvantage is that criminals have been able to produce fake coins and bills. In the middle of the 20th century, plastic credit cards were introduced. They had security features to prevent them from being used by anyone except their owners. At first, their use was limited to wealthy people. Over time, however, they became ( 22 ). In the last few years, apps for smartphones that can be used in the same way as credit cards have also become popular. Because of this, some people are suggesting that we may soon see the end of cash. Supporters of a "cashless" society in which all payments are made electronically argue that it would have several benefits. For example, people would not have to worry about keeping their wallets safe. However, some people are concerned that they might be unable to pay for the things they need because of a software error or a broken smartphone. Moreover, some people do not have bank accounts or credit cards, so their only option is to use coins and bills. ( 23 ), it seems as though societies will continue to use cash. 1 can be lost or stolen can be recycled 1 thinner and lighter 3 harder to use 1 For now 2 Until then 2 4 2 4 3 is used for shopping online is understood by almost everyone more colorful and exciting more widely available With luck 4 By contrast

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