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English Senior High

なぜ、suggesting になるのかがわかりません💦

英語 About seven years ago I started learning how to paint as a hobby: I was pretty terrible. Everything looked flat, I did not have the right proportions, and my colors were totally off. My friends and colleagues suggested that I stop wasting my time (a ) something I wasn't good at. "Focus on your day job," they said. I kept at it practicing, taking classes, finding the right teachers who could teach and challenge me Over five years, painting started to become intuitive", and surprisingly, I am now considered "good." Today, the same friends say I was born with this talent. "You're in the wrong profession," one said recently. The same thing happened when I started piano and singing lessons a couple of years ago. Comments shifted from. "Stop wasting your time and focus on what you know," to "You've got a musical talent." (A These comments originate from long-held beliefs that growth is largely not possible for adults. Even when there is evidence of learning, it can be caused by talent from birth, like the comments that I received suggested. Most scientific studies on adulthood focus on cognitive maintenance or decline, rather than growth. (b) that even scientists may think that development is severely limited in adulthood. The prevailing" mentality is represented by proverbs, such as "use it or lose it," or worse, "old dogs can't learn new tricks." A few recent studies, such as ones by Arne May and Denise Park, ( C ) suggest that learning new skills, such as juggling or photography, for even three months may strengthen brain functioning in adults. (B) I would take these studies one step further to argue that an important cause of cognitive

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Mathematics Senior High

微文法と積分法の範囲の極限値についてで、 1枚目の🟧のマーカーの部分で 『hが限りなく0に近づくとき』とありますが、 2枚目の問題の(1)、(2)の答えはそれぞれ4と3であって、それはhに代入する数と等しく、それぞれの( )の中身を0にするための数なのですか?? 語彙力ない... Read More

次の平均変化率を求めよ。 練習 1 (1) 1次関数y=2x の, x=a から x = 6 までの平均変化率 (2) 2次関数y=-x2 の, x=2から x=2+hまでの平均変化率 B 極限値 5 例1で求めた平均変化率 2+hの値について,xの変化量んを 0.1, 0.01, 0.001, 0.0001, または -0.1, -0.01, 0.001, -0.0001, h < 0 でもよい。 のように, 0 の両側から0に限りなく近づけてみよう。 すると、下の表からもわかるように、2+hは2に限りなく近づく。 10 h -0.1 -0.01 -0.001 -0.0001 0 0.0001 0.001 0.01 0.1 2+h 1.9 1.99 1.999 1.9999 2 2.0001 2.001 2.01 2.1 このことを, りなく 代 軽くげんちら(笑 -f(a) 15 I んが0に限りなく近づくとき, 2+hの極限値は2である といい, 記号lim を用いて次のように書く。 lim (2+h)=2 h→0 A+AD 第6章 微分法と積分法 注意 んが0に限りなく近づく場合, hは0と異なる値をとりながら0に近づ くと約束する。数 例2 このような極限値の例を、ほかにも示そう。 (1) lim(4-h)=4 014 (2) lim (3+3h+h²)=3 h→0 3h とんはどちらも 終 20に限りなく近づく。 練習 次の極限値を求めよ。 2 (1) lim (6+h) (2) lim(12-6h+h²) ho h→0 ((木) 20 20 * lim は 「極限」 を意味する英語 limit を略したものである。

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