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英語 高校生

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)

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数学 高校生

(2)の[aとb]です 降べきの順は次数の多い順に並べるけど、-a²b²+(2ab+a-5b)+1にならないのはなぜですか?

基本 例題 1 多項式の整理 次の多項式の同類項をまとめて整理せよ。また、[ ]内の文字に着目したと その次数と定数項をいえ。 ののののの (1)-2x+3y+x²+5x-y[x] (2) ab2-ab+3ab-2a2b2+4a5b-3a+1 [a と6], [6] CHART & SOLUTION 多項式の整理 (1)xに着目 同類項をまとめ, 降べきの順に整理 (2)に着目 → αは定数と考えて, 6について降べきの順に。 は定数と考えて, xについて降べきの順に。 p.12 基本事項 1 解答 (1) -2x+3y+x2+5x-y =x2+(-2+5)x+(3-1)y =x2+3x+2y よって, xに着目すると,次数は2, 定数項は2y (2) a2b2-ab+3ab-2a2b2+4a-56-3a+1 =(1-2)a2b2+(-1+3)ab+(4-3)a-56+1 = -a2b2+2ab+a-56+1 == よって,αとに着目すると,次数は4, 定数項は 1 また,bについて降べきの順に整理すると -α°b2+ (2α-5)6+(a+1) 同類項に着目。 ←同類項をまとめる。 ◆xについて降べきの に。 同類項に着目。 同類項をまとめる。 4次の項・・・ -d262 2次の項・・・ 2ab 1次の項 ・・・ α,-5 定数項・・・ 1 の順に整理。 よって, bに着目すると, 次数は 2, 定数項は α+1 INFORMATION 多項式の整理 1つの文字について項の次数の高い方から順に並べる→降べきの順に整理 1つの文字について項の次数の低い方から順に並べる→昇べきの順に整理 次数の大小は、ふつう 「高い」, 「低い」で表される。

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