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English Senior High

問4の⑤の計算はどうすれば合うのですか。 教えてください🙇‍♀️ 3枚目が答えです。

次の英文を読んで,下の設問に答えなさい。 Last year, 4.2 million babies died. That is the most recent number reported by UNICEF of deaths before the age of one, worldwide. We often see lonely and emotionally charged numbers like this in the news or in the materials of activist groups or organizations. They produce a reaction. Who can even imagine 4.2 million dead babies? It is so terrible, and even worse when we know that almost all died from easily preventable diseases. And how can anyone argue that 4.2 million is anything other than a huge number? You might think that nobody would even try to argue (that, but you would be wrong. That is exactly why I mentioned this number. Because it is not huge: it is beautifully small. If we even start to think about how tragic each of these deaths is for the parents who had waited for their newborn to smile, and walk, and play, and instead had to bury their baby, then this number could keep us crying for a long time. But who would be helped by these tears? Instead let's think clearly about human suffering. The number 4.2 million is for 2016. The year before, the number was 4.4 million. The year before that, it was 4.5 million. Back in 1950, it was 14.4 million. That's almost 10 million more dead babies per year, compared with today. Suddenly this terrible number starts to look smaller. In fact (2)the number has never been lower. Of course, I am the first person to wish the number was even lower and falling even faster. But to know how to act, and how to prioritize resources, nothing can be more important than doing the cool-headed math and realizing what works and what doesn't. And this is clear: more and more deaths are being prevented. comparing the numbers. (3). We would never realize that without

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Mathematics Senior High

解説お願いします。 (ⅲ)が解説読んでも分からないです。 とくに解説ピンクマーカーの部分がなぜそうなるのかを教えて頂きたいです。 よろしくお願いします。

数学Ⅱ 数学B 数学C 第1問 (必答問題) (配点 15) (1) 次の問題Aについて考えよう。 216 問題A 関数y=sine + √3cose (0≦esz)の最大値を求めよ。 sin ア √√3 2 TT COS =1 ア であるから 三角関数の合成により π y= イ sin0 + ア 2. 25 (i) p>0のときは, 加法定理 cos(e-α)=cose cosa + sino sing を用いると y = sin0 + pcost= キ cos(-a) と表すことができる。 ただし, αは y=TAP cos(0- ク ケ sin α = COS α 0<a</ 太さんが を満たすものとする。 このとき, y は 0 = コ で最大値 サ ぎとる。 {ssin (0+1)=1 15752. (ii) p < 0 のとき, yは0= シ で最大値 ス をとる。 と変形できる。 よって, yは0= で最大値 エ をとる。 ウ (2) pを定数とし、次の問題Bについて考えよう。 問題B 関数y= sind +pcose (0≧≦)の最大値を求めよ。 (i) p=0のとき, yは0= TU 最大値 カ をとる。 オ 2 (数学Ⅱ 数学 B 数学C第1問は次ページに続く。) キ ~ ケ サ ス の解答群 (同じものを繰り返し選 んでもよい。) O-1 P ① 1 (2) -p 41-p ⑤5 1+p -p² ⑨ 1 + p2 7 p2 (1-p)2 1-p² (1 + p)² コ の解答群 (同じものを繰り返し選んでもよい。) for to 0 0 ①a ② 2

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