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Mathematics Senior High

175.2 訂正後の記述に問題はないですかね??

基本例題 175 対数の大小比較 次の各組の数の大小を不等号を用いて表せ。 (1) 1.5, log3561 (2) 2, log49, log25 指針 対数の大小比較では,次の対数関数の性質を利用する。 a>1のとき 0<p<g⇔logp<logag 対 大小一致 0<a<1のとき 0<p<glogp>log.g -- 解答 せ。説明 大小反対 (不等号の向きが変わる) まず異なる底はそろえることから始める。 (1) 小数 1.5 を分数に直し、底を3とする対数で表す。 (2 を底を2とする対数で表す。 2と1049 (3) (3) logo.53, logo.52, log32, log52 p.273 基本事項 ② 件に関する箇所を比べてた。 HUTE 【CHART 対数の大小 底をそろえて 真数を比較 (3) 4数を正の数と負の数に分けてから比較する。 また, 10g2, 10gs2の比較では, 真数がともに2であるから, 底を2にそろえると考えやすい。 (2) 2210g2=10g222=10g24, 底2は1より大きく, 3 4 <5であるから (1) 1.5=2=log:3=log, 3} # (3³)²=3¹=27>5² また 底3は1より大きく35であるからな 10g33 >10g35) したがって 2 1.5 >log35 同値では10g23210g23 log4 9=- log22² ......... 1 logs2= log52= log23' 10g25 1 <3 < 5 であるから 0<log23 <log25 recept Soffol よって 0< すなわち したがって log25 log2 3 10gage 1 log.pt log23 <log24<log25 すなわち 10g9<2<log25 0.5は1より小さく, 3>2>1であるから logo.53<logo.52<0ft で,底2は1より大きく, 式しか定 次の各組の数の大小を不等号を用いて表せ。 (?) 19go.33,10go.35 YA a>1 0/p 00000 - ***** 0<log52<log32 logo.53 <logo.52<logs2<logs2で成り立つ log, y=logaxのグラフ gx y 0<a<1 log.p op. logag 1 g 底はそろえよ <A> 0, B>0ならば A>B⇒A¹>B² 底の変換公式。 a142ターのように アート 不等号の向きが変わる。 指針のy=10gaxのグラフ から, α>1のとき 0<x<1⇔10gax<0 x>1⇔10gax>0 Job 0 <a <1のとき 0<x<1⇔10gax > 0 x>1⇔10gax < 0 x Op.293 EX113 (3) logo.54, log24, log34 275 5章 31 対数関数

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Mathematics Senior High

私はいまニュージーランドに留学している今年度上智大学を受験予定の高校2年生です。上智大学の経営学科の帰国生入試には和訳問題があるのですが、どれも自分には難しく、現地の先生にアドバイスしていただいてもいまいちわかりません。どなたか、回答を教えていただければと思います。 下線... Read More

Why - and why now? Because of the shift in the Experience Economy. Goods and services are no longer enough; what consumer want today are experience - memorable events that engage them in an inherently personal way. As paid-for experiences proliferate, people now decide where and when to spend their money and time - the currency of experiences - as much if not more than they deliberate on what and how to buy (the purview of goods and services). (1) But in a world increasingly filled with deliberately and sensationally staged experiences - an increasingly unreal world - consumers choose to buy or not buy based on how real they perceive an offering to be. Business today, therefore, is all about being real. Original. Genuine. Sincere. Authentic. In any industry where experiences come to the fore, issues of authenticity follow closely behind. Think of Disneyland. No place before or since its opening in 1955 has provoked more debate on authenticity within modern culture, nor has any other business sparked more controversy on the effect of commercial activity on the reality of modern living than the Walt Disney Company. (2) Or think coffee. Starbucks earns several dollars for every cup of coffee, over and above the few cents the beans are worth, precisely because it has learned to stage a distinctive coffee-drinking experience centered on the ambience of each place and the theatre of making each cup. Perhaps no other company in the world more earnestly and steadfastly seeks to render authenticity ー resolutely shaping how real consumers perceive it to be. The task has become harder and harder, however, as Starbucks has grown from one shop in Seattle to over 13,000 venues around the world, for nothing kills authenticity like ubiquity. The success of Starbucks no longer depends on its operational prowess or taste superiority; it lies solely in sustaining coffee drinkers' perception of the Starbucks experience as authentic. (3) Now that the Experience Economy has reached full flower - supplanting the Service Economy as it had in turn overtaken the Industrial Economy, which itself had replace the Agrarian Economy - such issues of authenticity now bear down on not only all experience offerings but across all of the economyY.

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