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Mathematics Senior High

数2の質問です! (3)は矢印のところ、 (4)を分かりやすく教えてほしいです!! 特に(4)は問題の式から 答えの式1行目の計算式の出し方を教えてほしいです! よろしくおねがいします🙇🏻‍♀️՞

(1) 4loga√2-log3+log: 2 考え方 (1) まず, 各項を10gzA の形にする。 次に, 対数の性質を用いて項をまとめる (2)底の変換公式を用いて, 底を2にそろえる。 √√3 のとき 0<a<1のとき 解答 (1) (与式)=log(v2)-logs√3+logs 各項を logs A の形へ。 √3 ←真数をまとめる。 48 =log21 2 基本と演テーマ 数学Ⅱ (10g23+ (2) (5)=(log:3+ loglog 3 log:9 23 log/loglogs2 底を2にそろえる。 (3) (与式) (log.3) log22 10823 log4 + log29 = 2 (10g.3+logid) (woks+210k3) 2/2(10g)3) log 2log 3)=23-(log23). 2log 3 3 9 答 1 4 = (logs3) log,3 + log222 log232 練習 197 次の式を計算せよ。 5 log35-log√3 (3) (log 3) (log-2+log,4) テーマ 89 対数の値 (2) 210g√5/12/10ga6+10gs (4)10gs/0/+10g/√27 log23=a, logs5=bとするとき, 次の値をα, bを用いて表せ。 6 (3) log.20 [応用 √√6 3 =-4 (4) (与式) =(10823 (10,5+ 210g23) =log23 x- log3g 2 2 log,3 1 log,√27 + log√√3 1 log 37 9 log2 3-2 log.31 + log,33 log33-2 19 (2) 図 (1)のグラフと (3) [図] (1)のグラフと (2) 200 (1) () 軸に関して対称。 y 軸に関して対称。 3 2 予 + -2 2 Alog 3

Resolved Answers: 1
English Senior High

この解説の授業受けておらず友達に答え見せて貰い(1)の答えが、紅茶にミルクを注がれると一杯の紅茶の味がよくなるという発見 と書いてあったのですが、私はミルクに紅茶を注がれると一杯の紅茶の味がよくなるというという発見だと思います。どちらが正しいですか?よろしくお願いします🙇

15 The secret of how to make a perfect cup of tea has finally been discovered by put the milk in first. The finding that a cup of tea tastes better English scientists if the tea is poured into the milk appeared to have settled an argument that has been of major concern to this nation of tea drinkers. 52 It all began after Dr. *Andrew Stapley, a chemical engineer at *Loughborough University, revealed 3) the recipe for a perfect cup of tea. He said the keys to producing the perfect cup were using *soft water, warming the pot and allowing the tea to stand for three minutes. As to the difficult issue of whether the milk or tea should be poured in first, Dr. Stapley said science proved it must be the former. The reason is that 10 when milk is exposed to high temperatures, such as being poured into a cup of very hot tea, it loses its fresh taste. 3 However, only a few hours after Dr. Stapley announced his findings to the world, a noisy debate started within the scientific community. Dr. Julia King, head of the *Institute of Physics, said the secret was to keep the water temperature at 98°C. Putting the milk in first was only a social custom that "has nothing to do with taste," she said. "In the past, only the rich could afford high quality *china cups which could withstand the hot tea being poured in directly. In contrast, those of us with cheap china had to put the milk in first to prevent our cups from cracking." ウ 262 words)

Resolved Answers: 1